> ## Documentation Index > Fetch the complete documentation index at: https://docs.telli.com/llms.txt > Use this file to discover all available pages before exploring further. # Changelog > We're constantly shipping new features and improvements. Here's what's new in telli. ## Do more with Charlie Charlie can now handle more day-to-day work across telli. Ask Charlie to create, update, delete, or schedule contacts; manage contact properties; rename or duplicate agents; and rename, duplicate, reset, or enable workflows. Charlie asks for confirmation before sensitive changes, such as deleting a contact, discarding a draft, or enabling a workflow.

Charlie creating a contact and updating a workflow

Charlie creating a contact and updating a workflow

### Full call transcripts in workflows [Call ended workflows](https://app.telli.com/_/workflows) can now use the full plain-text call transcript through `call.transcript`. Use it in conditions and action mappings to pass the conversation to follow-up steps, integrations, or webhooks without assembling individual transcript turns.

Filter [Conversations](https://app.telli.com/_/conversations) by calls shorter or longer than a selected duration
Choose GPT-5.6 Luna in an agent's advanced model settings
Failed workflow HTTP requests now show their response status and body in the run history
Outbound calls stop before dialing emergency and crisis short codes
Callback confirmations now name the weekday and use clear relative dates such as today or tomorrow
Set a SIP From user and host for each number on a custom SIP trunk

iOS screened calls no longer cause duplicate greetings or continue the screening prompt after the recipient answers
Knowledge bases show Processing immediately after file changes are saved
Warm transfers now wait for the supervisor before the briefing and accept short consent answers without speaking over them
Relative and yearless dates in custom call outcomes now use the call's local time

Contact responses now expose current Auto Dialer enrollment as `auto_dialer_status` in V1 and `autoDialerStatus` in V2

## Automatic data retention telli now supports automatic data retention. If data retention is included in your plan, set how long contacts and call data are kept under [Settings > Organization](https://app.telli.com/_/settings/organization). Choose from 1 to 730 days for contacts, all call data, recordings, or transcripts. telli applies the rules daily and asks for confirmation before saving.

Data retention settings for contacts, call data, recordings, and transcripts

Data retention settings for contacts, call data, recordings, and transcripts

### More reliable warm transfers Set between 1 and 10 attempts for each warm-transfer destination and review every dial, briefing, and outcome in the conversation timeline. Agents wait for active transfers instead of reporting failure early, then stop after the limit. New destinations start with three attempts; existing destinations stay unlimited until you set a limit.

Warm transfer settings with an attempt limit and transfer outcomes in the conversation timeline

Warm transfer settings with an attempt limit and transfer outcomes in the conversation timeline

### Better progress during longer tool calls Voice agents now keep callers informed when a tool takes longer instead of falling silent. Custom HTTP tools with an in-progress message can wait up to 30 seconds for a result.

Ask Charlie to find affected calls and submit confirmed feedback for exact transcript turns or audio ranges
Choose Cartesia Sonic 3.6 or ElevenLabs v3 Conversational for supported voices in the Agent Builder and test calls
Known contact names now improve transcription accuracy with Soniox and supported Deepgram models
Type `{` for variable suggestions or `/` for tools and variables; malformed variables with spaces are now highlighted correctly
Calendar tools can search caller-requested date ranges up to 90 days beyond the default two-week window

Call feedback from the Agent Builder conversation tab now saves without a reload or return to the editor
Generated agent drafts now name the selected language instead of incorrectly naming English
Deleted workflow runs no longer remain in workflow lists, counts, or detail views

## Annotate call transcripts You can now annotate a specific moment while reviewing a call transcript in [Conversations](https://app.telli.com/_/conversations). Hover an agent, contact, or tool turn to report an issue inline, then adjust the highlighted audio range and describe what went wrong. telli suggests an issue category, and saved annotations stay connected to the transcript and waveform so your team can return to the exact moment or ask Charlie to help fix it.

Issue annotation attached to a highlighted range in a call transcript

Issue annotation attached to a highlighted range in a call transcript

Review calls with a zoomable waveform, recording-aligned transcripts, turn timing details, and feedback markers in the conversation list
Call ended workflows can opt into failed calls and route on numeric SIP status codes, with trigger, start, and end timestamps available in conditions and mappings
Changes under [Settings > Organization](https://app.telli.com/_/settings/organization) now save more safely, with an explicit Save button for the inbound-call fallback, unsaved-change warnings, and confirmation before disabling call recordings or EU AI Act compliance
Edit your first and last name under [Settings > Profile](https://app.telli.com/_/settings/profile); valid changes save when you leave the field
Contact search now matches contact IDs and hyphenated external IDs in the contact list and through Charlie
Accounts can define up to 500 contact properties
The API docs now start with authentication, base URLs, and direct downloads for the V1 and V2 OpenAPI specifications

Voice agents no longer speak leaked control markers or function-call names
Calendly bookings no longer time out after a second availability check or create an appointment after the agent reports a failure
Address validation accepts empty optional fields and gives the agent actionable guidance when a value is invalid
Charlie conversations and feedback no longer skip or repeat rows during pagination

Subscribe to the new `call_rescheduled` webhook to receive the selected schedule, assigned agent, destination number, and contact data whenever a later call time is saved

## Branded SMS You can now send SMS with your brand name instead of a phone number. [Request the sender name you want to use](https://app.telli.com/_/telephony/verifications?tab=sms-sender-ids), then select the approved sender ID in an agent's Send SMS tool or in a [workflow](https://app.telli.com/_/workflows). Before sending, telli checks that the sender ID is supported in the destination country.

SMS received from telli instead of a phone number

SMS received from telli instead of a phone number

Charlie now stays alongside the current page in a resizable workspace, keeps fullscreen mode after a refresh, and opens with selected transcript messages attached as context
Warm transfers can require the recipient to press `1` before the contact is connected, preventing hold music or voicemail from accepting a transfer
Scheduled and batch calls can run once on eligible outbound plans without Auto Dialer; automatic retries and custom dialing strategies remain upgrade features
Add the optional Next Call column to the contacts table to see each contact's next scheduled call and whether it is already queued
Salesforce integrations can sync Person Accounts into telli contacts when Person Accounts are enabled in Salesforce
Signup suggests requesting an invite when your work-email domain matches an existing telli workspace, while still letting you create a separate workspace
Self-serve accounts can complete five connected calls before onboarding grace ends, up from one
Reconciled call transfers now show their duration in the call details

Plan and billing-interval changes for active subscriptions open a prefilled support request instead of failing at checkout
Transfer tools no longer crash the Agent Builder when configurations are incomplete or removed
Contact CSV imports accept displayed labels for select fields, including umlaut and transliterated variants
Newly purchased telli phone numbers no longer fail provisioning while Twilio propagates them between regions

Validated address results include latitude and longitude in V1 call responses and `call_ended` webhooks when coordinates are available; call details show the same captured coordinates
Webhook documentation now provides generated payload schemas for each event, with clearer setup, signature verification, and retry guidance

## Delay steps in workflows You can now add delay steps to [workflows](https://app.telli.com/_/workflows) before the next step runs. Set the pause in days, hours, minutes, or seconds. telli validates every path and prevents publishing when its combined delays exceed 30 days.

Delay step with duration controls in the workflow builder

Delay step with duration controls in the workflow builder

### Control when follow-up calls can happen For each agent, choose whether follow-up calls can happen at any time, during the agent's calling window, or within custom hours. Blocked dates and the maximum scheduling horizon are enforced when the call is arranged. Follow-up calls also work when Auto Dialer is disabled.

Follow-up calling window settings in the agent builder

Follow-up calling window settings in the agent builder

Owners of self-serve subscriptions can cancel at the end of the current billing period and resume before the cancellation takes effect under [Settings > Billing](https://app.telli.com/_/settings/billing)
Owners and admins can permanently delete a call recording from the call details while retaining its transcript and analysis
[Settings](https://app.telli.com/_/settings) now use a dedicated sidebar with clearer subpage navigation, breadcrumbs, and a direct path back to the app
Billing shows usage against plan allowances, including overages and exhausted limits
Auto Dialer status, total calls, connected calls, and the Auto Dialer filter are now available for every account in the contacts table
Inbound SIP configuration for supported telli numbers now includes media encryption and allowed IP or CIDR ranges

Failed outbound call starts no longer leave contacts or calling loops stuck in a running state
Scheduled follow-ups stay intact when calling windows change, declined follow-ups are cleared reliably, and rejected times are no longer confirmed by the agent
Deleting a contact now redacts associated text-message content and contact addresses
Charlie shows actionable errors instead of silently stopping, and oversized PDF attachments are rejected before submission with a clear page limit
App loading and top-level errors no longer produce blank pages or disruptive layout shifts
The mobile sidebar closes after opening the selected page instead of covering it
More English and German iOS call-screening phrases are recognized reliably, including prompts that appear later in the screening flow
Successful checkout no longer reopens the paywall, and upcoming or sales-managed subscriptions show the correct state and name

V1 call responses and `call_ended` webhooks no longer return stale or conflicting `call_status` values

## EU AI Act compliance You can now check and enforce AI disclosure for voice agents. For European accounts, EU AI Act compliance is enabled by default, with each agent's status shown directly in the builder. The check looks for disclosure within the first four spoken sentences, and Charlie can help fix missing disclosures.

EU AI Act compliance check in the agent builder

EU AI Act compliance check in the agent builder

### Appointments with BookingTime Connect [BookingTime](https://app.telli.com/_/settings/integrations/bookingtime), choose an organization and appointment type for each agent, and let the agent find availability and create appointments during calls. When details such as the caller's name or email address are missing, the agent collects them before completing the booking.

BookingTime integration overview

BookingTime integration overview

The same phone number can now handle inbound calls for an agent while remaining available for outbound calls
Self-serve accounts can explore telli before choosing a plan; gated actions open the plan selector, where the current plan and billing interval are clearly marked
Long Charlie conversations stay responsive while answers stream instead of slowing down as the conversation grows
Charlie conversations now have direct URLs, so you can bookmark or share a conversation and reopen it from any app page
When you ask where to find or configure something, Charlie can take you directly to more relevant pages across telli
Organization owners and admins can set, replace, or remove the organization logo from [organization settings](https://app.telli.com/_/settings/organization)
Paste screenshots and other supported clipboard files directly into Charlie
Knowledge-base uploads respect your plan's storage limit, and files over 20 MB show a clear error before uploading

Warm-transfer timeouts no longer produce tool errors or finalize the same transfer more than once
Large contact exports complete in the background, keep their progress after a refresh, and no longer time out for large datasets
Signup research no longer restarts when its Charlie conversation is added to the URL, and onboarding test calls use the configured agent draft
HubSpot contact sync uses the correct portal after reconnecting and recovers from stale synchronization cursors
Collect Data tasks enforce configured minimum and maximum lengths instead of accepting out-of-range responses

Call responses and `call_ended` webhooks expose transfer destination and completion time through `transfer`
Connected inbound calls now populate successful `sip_status` and `sip_status_code` values

## From signup to your first agent Getting started with telli is now fully self-serve. Sign up with any email address, let Charlie research your company and build a tailored first voice agent from proven production patterns, make a test call, then choose the plan that fits.

Charlie recommending tailored use cases for a new voice agent after researching the company

Charlie recommending tailored use cases for a new voice agent after researching the company

### Start from a proven use case Charlie recommends relevant jobs for your agent based on your company website. Choose one and Charlie creates the full instructions, opening messages, and call outcomes from a catalog modeled on 20 successful production agents. A test-call action appears as soon as the agent is ready, and the conversation stays open so you can keep refining it after the call.

The agent builder puts the core configuration above the sidebar on smaller screens and lets you collapse long prompt previews
First-time invited users enter their name and accept the policies before joining an organization
Signup and login now have separate routes with clearer, intent-specific copy
telli follows your browser or operating-system language until you explicitly choose a language
Optimized raster images reduce the download size of sign-in and affected app pages
When a plan or token allowance blocks Charlie, the chat explains the correct reason and links directly to plan selection

Zeeg bookings support newer per-location keys, while unsupported custom locations are filtered out instead of failing during a call
Charlie retries after an invalid question configuration instead of waiting for an answer to a card that never appeared
Charlie question cards no longer expose internal tool-call tags in the app, Slack, or saved conversations
Charlie stays open after mobile onboarding navigates to the newly created agent
Expired, canceled, or already-used invitation links show a useful error and any other pending invitations
Phone verification fraud blocks show accurate retry and alternate-number guidance instead of a temporary outage message
Returning to a previous company website during signup refreshes the suggested company name and logo correctly

`call_ended` webhooks include `state`, final `status`, and `follow_up`, matching the modern Calls API fields
Scheduling a call with an invalid `agent_id` returns a structured 400 validation error instead of an internal server error

## Charlie in Slack Charlie now works in [Slack](https://app.telli.com/_/settings/integrations/slack). Connect a workspace, choose where Charlie should be available, then mention it in a channel to ask about agents, calls, and results without leaving Slack.

Slack integration page with the expanded overview and Enable action

Slack integration page with the expanded overview and Enable action

### Choose where Charlie works During setup, select at least one channel for Charlie, then add or remove channels from the integration page as your team changes. If one Slack workspace serves several telli accounts, each channel is assigned to one account and channels already linked elsewhere are clearly marked, so conversations and account data stay separated.

Slack thread where Charlie summarizes weekly call performance with total calls, connection rate, and the busiest agent

Slack thread where Charlie summarizes weekly call performance with total calls, connection rate, and the busiest agent

### Keeps threads and workspaces in context Charlie reads the messages and files already shared in a thread before the mention and posts its answer back into the same thread. When it needs clarification, it can present answer buttons directly in Slack. Muted threads stay quiet until someone mentions Charlie again. Slack Connect channels route to the correct installed workspace, and replies show which telli account Charlie is working in. Access checks run before Charlie starts work, while direct messages point people to the available linked channels.

Schedule a future call directly from a contact's details, with the agent, date, time, and optional outbound number you want to use
Account owners can review their current plan, subscription status, billing period, and usage under [Settings > Billing](https://app.telli.com/_/settings/billing)
[Call ended workflow triggers](https://app.telli.com/_/workflows) can filter for connected calls, scheduled follow-ups, not connected calls, and voicemail; call status is also available in conditions and variables
Custom HTTP tools support nested JSON objects and recursive arrays in request bodies
Outbound-number selectors include numbers reserved for the selected agent across individual calls, bulk scheduling, CSV imports, and test calls
Charlie's streaming work is grouped into collapsible sections, so multi-step changes are easier to follow
Address collection understands street names spelled with the phonetic alphabet instead of saving the cue words literally
The [MCP integration](https://app.telli.com/_/settings/integrations/mcp) provides setup actions for Claude, ChatGPT, Cursor, Codex, and Claude Code, and lets you review or revoke personal connections

Call outcomes now finalize reliably after post-processing and across every session-close path, instead of remaining stuck or publishing an incomplete result
Outbound calls retry once after a temporary provider 502 instead of immediately marking the contact as not reached
Late voicemail detection corrects the final call outcome instead of leaving the call marked as connected
Ending a call loop no longer marks the active contact as not reached before the call finishes
Switching organizations preserves valid nested pages such as Billing settings instead of landing on a broader page or a 404
Charlie conversations fall back to account context and continue when the focused agent or workflow has been deleted

## Charlie through MCP You can now connect Claude, ChatGPT, Cursor, Codex, and Claude Code to Charlie through [MCP](https://app.telli.com/_/settings/integrations/mcp). Add the telli MCP server to the AI client you already use, authorize access, then ask Charlie to investigate or complete work in telli without switching tools.

MCP integration page with an expanded overview explaining how AI tools connect to Charlie

MCP integration page with an expanded overview explaining how AI tools connect to Charlie

### Connect the tools you already use The same remote MCP endpoint works with Claude, ChatGPT, Cursor, Codex, and Claude Code. Your client opens telli for OAuth authorization, so you do not need to copy API credentials into another tool. The connection can work with every telli account you can access, with your current role applied separately in each account. ### Continues after a question Longer requests can keep running while the MCP client checks Charlie's progress. If Charlie needs clarification, the client receives the question, sends your answer back, and continues the same conversation instead of making you restart the task.

Modular voice agents can fall back across STT, LLM, and TTS providers when a provider fails or responds too slowly, so calls are less likely to stall
From [Conversations](https://app.telli.com/_/conversations), select the exact transcript turns that need work or submit written feedback, then open Charlie with that context already attached
Drop files into Charlie from any page and send an attachment without adding a text message
Charlie creates new voice agents through a focused interview, asking one question at a time before building the initial configuration
Workflow notification emails can include only the call-outcome fields you select; existing workflows continue to include all fields by default
Charlie can return generated files as download cards and shows compact progress while completing multi-step work
Conversation searches by phone number respond faster and wait until you pause typing before running
Contact CSV exports show progress, open more reliably in Excel, and keep each contact on one row by replacing line breaks in field values

Charlie responses recover after a refresh or temporary disconnect instead of leaving the conversation stuck on a stale stream
Magic-link codes work even when an email client changes their capitalization or adds surrounding whitespace
Removing a contact from the Auto Dialer no longer leaves the contact displayed as active because of a canceled call loop
Missing or unauthorized calls no longer trigger a misleading login redirect
WhatsApp messages no longer appear in the Scheduled filter, and incompatible call-only filters are cleared when you switch channels

Call responses expose the new final call outcome through `status`, alongside lifecycle and follow-up fields; the legacy `call_status` field remains available for compatibility but is deprecated

## Charlie, everywhere! Charlie now works everywhere in telli, not just inside the agent builder. Wherever you open it, Charlie adapts to what you have on screen - a workflow, a call, a contact, or your whole set of agents - so you can ask across the account instead of just about the agent you're editing.

Fullscreen Ask Charlie welcome view focused on a Booking follow-ups workflow, with a WhatsApp appointment prompt typed into the input

Fullscreen Ask Charlie welcome view focused on a Booking follow-ups workflow, with a WhatsApp appointment prompt typed into the input

### Open Charlie from any page Ask Charlie is just a keyboard shortcut away. The main sidebar auto-collapses to give the chat room, and a new conversation picks up whatever agent, workflow, or call you had open so you don't have to re-explain the context. ### Builds workflows with you Charlie can now create and edit [workflows](https://app.telli.com/_/workflows) directly from chat - it drops in the trigger, condition, and action blocks, asks a clarifying question when it needs one, and proposes the publish before anything goes live.

Charlie chat next to a workflow builder showing it built a Call completed trigger, an If/else answered-call check, and a Send WhatsApp appointment confirmation block, and asks to publish

Charlie chat next to a workflow builder showing it built a Call completed trigger, an If/else answered-call check, and a Send WhatsApp appointment confirmation block, and asks to publish

### Reaches across the account Charlie can now pull contact activity, agent revision history, and calls from anywhere in your account, and inline pills link agents, workflows, and calls straight to their page. Autocontinue is on by default so multi-step answers keep going without a nudge, and pressing Escape stops generation cleanly.

Dutch and French are now available as app languages, including localized emails and date formats
The [Integrations](https://app.telli.com/_/settings/integrations) catalog groups Voice, CRM, and Messaging into tabs, so channel-specific integrations are easier to find
Click any image in the in-app changelog to open it in a fullscreen viewer
Workflow save warnings name the exact fields that are still missing on each node, so you know what to fix
Arrow keys move up and down the [contacts list](https://app.telli.com/_/contacts) after clicking any row, matching how conversation history already worked
Contact imports and the API accept international phone numbers in `0049…`, `00 49…`, and `491…` formats, not just `+49…`
[Workflow](https://app.telli.com/_/workflows) drafts that are saved but not yet published no longer trigger an "unsaved changes" prompt when you navigate away
Hovering an agent's persona in the [agents table](https://app.telli.com/_/agents) shows the full persona description in a tooltip

Inbound calls with a real transcript are no longer stuck as "not connected" and now finalize as completed
The Auto Dialer respects the max retry days limit even when a retry gets snapped into the next day's dialing window
Post-processing no longer refuses to close calls that have a recording attached
The Activity tab in the contact details panel is clickable again
The contact property key input shows an inline validation error instead of silently rejecting invalid keys
Combobox clear (×) buttons work reliably across the app
German labels in the contact filters read correctly again

## WhatsApp Business telli now supports [WhatsApp Business](https://app.telli.com/_/settings/integrations/whatsapp) alongside voice and SMS. Connect your WhatsApp Business account from Integrations, choose approved templates, and message contacts through the channel they already use.

WhatsApp Business integration tile in the telli integration catalog showing Connected status

WhatsApp Business integration tile in the telli integration catalog showing Connected status

### Send WhatsApp from workflows Drop the new Send WhatsApp block into any workflow, pick a connected WhatsApp number, select a Meta-approved template, and map template fields to contact data, variables, or custom values for automated follow-ups.

Send WhatsApp block in the workflow builder with a Meta-approved feedback survey template and mapped body fields

Send WhatsApp block in the workflow builder with a Meta-approved feedback survey template and mapped body fields

### Message during a live call Agents can use a Send WhatsApp tool during calls, so they can send payment links, appointment confirmations, or other approved templates while the conversation is still live.

Send WhatsApp tool dialog in the agent builder with an appointment confirmation template selected

Send WhatsApp tool dialog in the agent builder with an appointment confirmation template selected

### Replies in Conversations Inbound WhatsApp messages are attached to the same conversation history and contact timeline as voice and SMS, with channel filters in Conversations so teams can follow the full thread. ### Auto Dialer settings The [Auto Dialer](https://app.telli.com/_/dialer) is now its own top-level page in the sidebar. Calling strategy, dialing windows, intensity, max attempts, and max retry days are configured once at the account level, and every agent inherits those defaults. You can still override any of them per agent, and a single "Disable for all agents" switch acts as a global kill switch.

Deleting a node in the middle of a linear [Workflow](https://app.telli.com/_/workflows) chain now reconnects the surrounding nodes automatically instead of cascading and orphaning everything downstream
Switch option group names are editable inline in the Workflow builder, and the selected-node focus ring matches the node's tone (brand, warning, success, destructive)
[HubSpot](https://app.telli.com/_/settings/integrations/hubspot)-synced contacts now show the HubSpot logo in the [contacts list](https://app.telli.com/_/contacts) and lock CRM-managed fields in the details panel, matching how Salesforce-synced contacts already worked
Deep links survive sign-in: opening something like `/_/settings/integrations/hubspot` while logged out now returns you to that exact page after authentication instead of dropping you on the dashboard
Scheduling success toasts name the selected agent in CSV and bulk-schedule flows, so you can confirm at a glance who was assigned
The Workflow publish dialog closes immediately on submit instead of holding a spinner, and the publish button no longer overflows on longer translated labels
Clearer Auto Dialer copy: "Disable everywhere" reads as "Disable for all agents", and no-call days now refer to "scheduled follow up calls" instead of "callbacks"

Contacts are no longer marked as "reached" after a not-reached-only call loop completes
Cal.com event type IDs reject trailing whitespace, which used to save silently and then break bookings at runtime
Knowledge base retrieval keeps every relevant context chunk in the final result instead of slicing some of them away

`POST /v1/phone-numbers/import` accepts an optional `inOutboundPool` boolean (default `true`), so you can import numbers without automatically adding them to the outbound pool

## HubSpot integration [HubSpot](https://app.telli.com/_/settings/integrations/hubspot) is now a first-class CRM integration in telli. Use the new Create Record and Update Record nodes in Workflows to write contacts, companies, deals, tickets, or any other HubSpot object straight from a call, custom fields included.

HubSpot integration settings with OAuth connection and Create Record workflow node

HubSpot integration settings with OAuth connection and Create Record workflow node

### Branded calling for everyone [Branded calling](https://app.telli.com/_/telephony/verifications?tab=branded-calling) is now available on every telli account. Open Verifications, and once your bundle is verified, assign individual numbers to it so your verified company name shows on the recipient's phone instead of an unknown number.

Branded Calling tab in Verifications with phone number bundle management

Branded Calling tab in Verifications with phone number bundle management

### Agent-specific outbound numbers You can now reserve account phone numbers for one agent. The dialer respects the reservation, so that agent only calls from its reserved numbers and stops drawing from the shared pool. Useful when different agents represent different brands, regions, or campaigns and need separate caller IDs. ### Cal.com EU support If your team is on the EU instance of [Cal.com](https://app.telli.com/_/settings/integrations/cal-com) (`api.cal.eu`), you can finally connect it to telli. The integration setup now includes a Region selector, so your availability lookups and bookings route to the right Cal.com tenant.

Importing contacts from CSV no longer blocks the request while we schedule them into call loops. The scheduling runs in the background and you see live progress in the import success step
You can force the language for call outcome analysis from the post-processing panel, so multilingual or short calls don't get classified in the wrong language
Transfer schedules and agent dialing windows can now respect your account's no-call days, so transfers and outbound calls skip public holidays automatically
Phone number validation on contacts gives clearer error messages, and the field is editable on the first click after picking a country

ElevenLabs TTS no longer stutters, repeats, or garbles spoken words
Edits to custom HTTP tools in draft mode now run in test calls; previously the published version was used instead
Voice cloning continues past step 4 again, after a regression in the new voice setup flow
Cal.com bookings: fully-booked seated slots are filtered out of availability, and the booking location field is handled correctly
The country select popover in the phone input closes after picking a country, so the field is immediately editable
Office background noise plays again on calls that requested it
Team invite emails are sent to the correct recipient
Buying a phone number no longer leaves an orphaned Twilio number behind when the purchase request errors out

## Address data collection The Collect Data task has a new address type. Add it to an agent and it walks the caller through providing a complete mailing address (street, city, postcode, country) in one structured step, validating the input and writing the parsed fields back onto the contact. It joins the existing email, license plate, digits, and generic collectors as a first-class option in the builder.

Collect Data task dialog with the new address type selected

Collect Data task dialog with the new address type selected

### Insert workflow blocks from edges Hover the line between two connected workflow nodes and a small plus appears. Click it to drop a new block in right there, instead of rebuilding the chain through the picker just to slot something in the middle.

Workflow edge with plus icon between two connected nodes

Workflow edge with plus icon between two connected nodes

### Conversations Voice and SMS now sit together on the new [Conversations](https://app.telli.com/_/conversations) page. The audio player has 5-second left/right seek shortcuts, a Copy ID action on the header, and red markers on the waveform wherever you've left negative feedback so problem spots are easy to find. SMS leaves beta this week, and Conversations is set up to absorb more channels as we add them.

The Contacts empty state now shows a one-click Connect button for Salesforce, so new accounts can wire up their CRM without leaving the page
Settings tabs scroll horizontally on narrow viewports, so the tab strip no longer overflows or gets clipped
Destructive confirmations (delete, disconnect, block, unassign) all use a consistent red action button, so irreversible actions are easier to spot
The workflow builder shows a loading state while the canvas mounts, instead of briefly flashing an empty page
Long message rows in conversation history are now width-constrained, so transcripts stay readable on wide screens
The agent builder sidebar shows a scroll shadow whenever there's more content below the fold

Voice cloning from a recorded sample works again, after a regression in last week's voice tooling
Custom HTTP tools can now leave JSON mode even when the JSON editor contains invalid JSON, so you're not stuck reformatting before you can switch back
Outbound callbacks scheduled after an inbound call no longer fire a duplicate dial
Pasting a multi-line value into a templated-string field preserves newlines instead of collapsing them
The frontend error page silently retries once before reporting, so transient chunk-load failures right after a deploy stop showing up as crashes
Dark mode is fixed on the "Success" and "Your agent is ready!" account-setup screens
Zeeg's duration picker stays visible while you select a duration, and the options now match what Zeeg actually offers
The active workflow node renders above its neighbors instead of being clipped

The `call_ended` webhook payload (and `GET /v1/calls/:id` plus the list endpoint) now include `sip_status_code` (integer) and `sip_status` (string), exposing the SIP-level outcome we were already storing on the call

## Zeeg calendar telli now supports [Zeeg](https://app.telli.com/_/settings/integrations/zeeg) as a calendar provider alongside Calendly. Connect with an API key, pick a scheduling page, and your agents can check availability and book meetings during a call. Custom invitee questions map to booking fields, so the agent captures the right data and writes it straight to Zeeg.

Zeeg integration settings with scheduling page picker

Zeeg integration settings with scheduling page picker

### Name your versions on publish You can now give a name to every published version of an agent or a workflow. telli auto-suggests a short title from the diff and you can edit it inline before publishing. Version history, the version picker, and related dropdowns show the title alongside the date and version number, so older revisions are easier to scan.

Publish dialog with auto-generated version title

Publish dialog with auto-generated version title

### Custom prompts for Collect Data tasks The Collect Data task in the agent builder has a new Prompt behavior. Pick Auto to keep the default sub-agent instructions, or write your own prompt to steer how the email, license plate, generic, or digits task asks for the value, confirms it, and handles edge cases - without touching the main agent prompt.

Collect Data task dialog with Prompt behavior selected

Collect Data task dialog with Prompt behavior selected

Agents can now stay on a call for up to 2 hours - the builder slider, validation, and call execution all respect the new limit
When buying a phone number, the selection and confirmation now show Voice and SMS capability badges, so you can pick the right number for the job
Scheduled calls in the contact timeline now show the agent name and the from-number, matching how past calls already appear
Discarding an agent draft now opens a full diff dialog instead of a plain confirm, so you can see exactly which changes you'd lose
The Variables panel's referenced indicator now picks up `{{variable}}` usage in the inbound and outbound first messages, not only in the main prompt
The active tab in the contact details panel (Details or Activity) is now kept in the URL, so deep links and reloads land on the same tab

Inbound phone numbers missing a leading `+` are now normalized, so calls from those numbers route correctly again
Up/down arrow navigation in conversation history now works when focus is in the right detail pane, not only in the left list
The agent builder prompt scrolls reliably again - the resize handle no longer steals the scroll area
The send-SMS-from-number control no longer renders with broken spacing
Inbound SMS now show the correct source label in the contact timeline

Press `Delete` or `Backspace` with selected contacts to open the bulk delete confirmation - typing in form fields is unaffected
Press `Escape` to close an open workflow node panel and return to the workflow canvas

## SMS telli now supports SMS alongside voice. You can text contacts from a workflow, agents can send templated SMS during a live call, and inbound replies land back in the same conversation thread.

## Trigger Workflows on new contacts The [Workflows](https://app.telli.com/_/workflows) trigger picker now includes new contacts. When a contact lands in telli - through CSV import, the API, or any other source - the workflow you've enabled for the contact-created trigger runs automatically. Combine actions like updating a property, calling a webhook, or writing the contact to Salesforce, so every new contact follows the same flow without any manual setup.

Workflow trigger picker showing the new contact created option

Workflow trigger picker showing the new contact created option

### Duplicate any workflow The Workflows list has a new Duplicate action. One click drops in a copy as a disabled draft, so you can edit the new version without touching the original. ### Send a bad call to Charlie for a fix When you spot a problem in builder call history, click the new Charlie wand next to the thumbs on any agent reply - or leave negative feedback on a call and pick "Try fix with Charlie". Either way, Charlie picks up the transcript up to that point and proposes a change you can review inline.

Outbound calls now play your voicemail message exactly once, even when the assistant and the background detector both react to the same beep
Auto Dialer settings have a new account-level timezone, used whenever a contact doesn't have its own timezone set
Agents with their own dialing windows now also respect your account-level no-call days, so configured holidays are skipped no matter how an agent's own schedule is set
Press Space to play or pause the audio player anywhere in the dashboard, and every audio button now has a tooltip explaining what it does
Click the title in the agent or workflow breadcrumb to rename it inline - press Enter or click outside to save
`externalId` is available in the agent variable menu, so prompts can reference it directly during a call
Phone numbers now use the same readable international format across the phone-number page, call history, breadcrumbs, and blocked-number dialogs, instead of unformatted numbers
The "Update contact" workflow node has a clearer label and icon, True/False values look consistent across run details and node summaries, and notification email subjects are cleaned up before sending

The contact details panel no longer crashes on older custom property rows, so accounts using legacy properties can open contact pages again
The call status icon now matches the actual call status, instead of always showing the ringing icon
Pressing Escape in the contacts list closes any open details panel, sheet, or dialog first - a second Escape clears the bulk selection
Loading placeholders for blocked phone numbers, call history badges, and filter buttons now match their final sizes, so the layout no longer shifts when data loads

## Filter contacts by property The [Contacts](https://app.telli.com/_/contacts) table now lets you filter by contact properties. Combine multiple filters to narrow down to the exact contact set you want, then act on the results - schedule calls, cancel pending dials, or open a single contact - without leaving the page.

Contacts page with the filter menu open showing property options

Contacts page with the filter menu open showing property options

### Block out no-call days The auto-dialer and "Call me later" now respect specific dates you mark as no-call days. Set public holidays, company-wide closures, or any individual date in [dialer settings](https://app.telli.com/_/dialer), and telli skips them automatically instead of placing outbound calls when it shouldn't.

No-call days settings with Christmas Eve added

No-call days settings with Christmas Eve added

### Block phone numbers from reaching your agents You can now block specific phone numbers from reaching your agents on inbound calls. Add a number from a call's details or directly in Settings → Telephony → [Blocked phone numbers](https://app.telli.com/_/telephony/blocked-phone-numbers), and any future inbound call from that number is rejected before it touches an agent. The list is account-wide, and outbound calling is unaffected.

Block a phone number dialog with a number filled in

Block a phone number dialog with a number filled in

Import a custom voice from Cartesia or ElevenLabs yourself by pasting its voice ID into voice settings, no request to telli needed
Voice settings let you pin a specific voice model per provider, with a Default option that follows telli's recommendation
Agents can schedule callbacks in relative time, like "in 30 minutes" or "in 2 hours", in addition to absolute times
Cold transfers now support SIP URI targets with optional REFER headers, unlocking handoffs to platforms like Zendesk
Date inputs gained month and year dropdowns, so far-back dates like birthdates are quick to set
Krisp is no longer selectable for background noise reduction in the agent builder - AI Coustics is the recommended replacement, and existing Krisp configs continue to work as legacy
Charlie can now show inline voice preview cards in the builder chat, so you can play samples without leaving the conversation
Knowledge base retrieval now pulls in sibling chunks from the same article, so the agent gets richer context per match

Removing a contact from the Auto-Dialer no longer leaves a stale call loop that blocks deletion of the agent
The Agent Builder no longer crashes intermittently when the chat panel loads
Salesforce surfaces a clear error when the connected user is missing API access or the session is invalid, with guidance to reconnect
Creating a tool with a duplicate name now returns a clear validation error instead of failing generically

## Workflows for every Salesforce object The [Workflows](https://app.telli.com/_/workflows) Salesforce action is no longer limited to Lead and Contact. You can now create or update any standard or custom Salesforce object. Build a workflow that writes the call outcome and any data your agent captured to the right Task, Case, Opportunity, or custom object after each call, with no extra integration code.

Workflow Salesforce action with object dropdown showing all available Salesforce objects

Workflow Salesforce action with object dropdown showing all available Salesforce objects

### Persistent chat history in the Agent Builder Charlie's chats now stick around. Conversations stay available across reloads and sessions, you can switch between past chats from a history menu, and start a fresh one when you want a clean slate. telli auto-generates a short title for each chat so older threads are easy to scan.

A dedicated data collection task captures phone numbers and other digit sequences more reliably than the general task
Workflow conditions display as grouped OR/AND blocks, so complex branching logic is easier to read at a glance
CSV import now clearly flags duplicate external IDs within the file, so you can resolve them before the import runs

Salesforce multipicklist values are now written correctly in post-call automation, instead of dropping selections
Calls no longer fail outright when a contact-stored transfer number is invalid - the agent handles it gracefully at runtime
Outbound callbacks scheduled via "Call me later" now use the same telli number as the original call, instead of switching to a different one

## Workflows [Workflows](https://app.telli.com/_/workflows) let you automate what happens after a call. Pick a trigger, drop in actions and conditions on the canvas, and decide what telli should do with each completed call without writing custom integration code.

## Meet Charlie, your Agent Builder co-pilot Charlie is the AI assistant in the Agent Builder chat panel. Tell Charlie what you want the agent to do differently, and Charlie drafts the prompt edits. Review each change inline, accept what looks right, and reject the rest without leaving the builder.

## Refine agents from their own call history The Agent Builder now ties refining an agent and reviewing its calls together in one place. Call History inside the builder gives you an overview, full transcript, and an audio player that follows along with the conversation as it plays, with consolidated filters to find the calls you care about. You can pick individual messages from a past call and bring them into the chat to refine the agent based on what actually happened.

Agent Builder chat input with file upload and voice input controls

Agent Builder chat input with file upload and voice input controls

The builder chat, powered by the most capable reasoning model available today, now accepts file uploads and voice input, so you can hand telli more context without leaving the conversation. ### Version history and version-targeted test calls Version history is more useful too. Before you publish, you can review a diff of what changed against the live version, restore an older revision when something needs to go back, and start a test call against a specific agent version to verify a change before rolling it out.

Make a test call dialog with agent version selector, phone number pool, and contact picker

Make a test call dialog with agent version selector, phone number pool, and contact picker

Builder filters for call history are consolidated into a single menu, so it is easier to narrow down to the calls you want to review
Agent and call outcome filters on the calls page are now searchable, so it is faster to find the right value in long lists
Call transcripts now show which agent ran the call, making it easier to follow conversations across agents

Recording links now resolve correctly when an agent is configured to record only the agent audio
Successful calls no longer show a misleading SIP status alongside the result
Line spacing in the prompt editor is corrected, so prompts are easier to read while editing
The formatting toolbar in the Agent Builder is restored, so you can apply rich text formatting again

## New Agent Builder You can now build and refine agents in the new Agent Builder. Instead of jumping between separate forms, chat, and settings, the builder gives you one cockpit for prompt editing, tools, call behavior, version history, and publish controls. That makes it easier to iterate on an agent, keep track of draft changes, and decide exactly when a new version should go live.

Agent Builder as a central cockpit for chat, settings, version history, and publishing

Agent Builder as a central cockpit for chat, settings, version history, and publishing

Day-to-day editing also feels much smoother. You can stay in the same flow while testing ideas, review earlier versions directly in the builder, and publish changes when they are ready instead of treating every edit like an all-or-nothing update.

Czech is now available as an agent language across the product
Call end states are more precise, making it easier to understand why a call stopped
Variable and tool suggestions in the Agent Builder are easier to use and less noisy while editing
Large agent lists are faster to browse

Inbound calls are matched and routed more reliably even when caller numbers arrive in different international formats
Temporary webhook timeouts, rate limits, and short outages are less likely to drop call updates
Non-German calls respond more reliably with improved speech recognition
Call openings are less likely to stall while telli infers salutations

## Debug mode in call details You can now switch the conversation view in call details into a debug mode that shows the raw tool trace for a call. This makes it easier to inspect tool calls, arguments, outputs, errors, and timing details without leaving telli when you need to understand why a call behaved a certain way.

Debug mode in call details showing chat turns, timings, and tool output

Debug mode in call details showing chat turns, timings, and tool output

Debug mode is built directly into the call details experience, so you can move between the conversation and the underlying trace in the same place while reviewing a call. ### Arabic and Turkish language support Agents now support Arabic and Turkish. You can select both languages in the agent configuration, and the language and voice mappings are available across the product so these setups work consistently end to end.

Warm transfers now support variables in post-dial DTMF, so you can forward dynamic values like IDs or extensions instead of only static digits
Call outcome instructions can now use contact variables dynamically, making it easier to tailor analysis prompts to the current contact
Scheduler names can now be renamed inline on the detail page instead of through a separate edit flow
The Agents page now shows a clearer empty state with a direct Create Agent action for first-time setup

Calendly setup now shows clear errors for invalid API keys and missing permissions, including the required scopes next to the API key field
Outbound calls with permanent SIP errors no longer retry unnecessarily when the destination number cannot be reached

## Call Scheduler You can now use Call Scheduler for outbound workflows where time to call matters. Sync contacts from your CRM, create a scheduler, and let telli call new matching contacts automatically as soon as they come in. This is especially useful when new leads should be contacted right away.

## Improved inbound routing and callback configuration You can now configure inbound calls and callbacks separately. In agent settings, callbacks have their own default action and exceptions, so you can decide when the original agent answers, when a callback is forwarded elsewhere, and when it is rejected. There is also an account-level fallback for unmatched inbound calls when telli cannot map the incoming number to an agent or known callback.

Callback configuration with separate callback actions and account-level fallback for inbound calls

Callback configuration with separate callback actions and account-level fallback for inbound calls

### Warm transfer controls Warm transfers are easier to fine-tune. You can adjust how the agent briefs the human before the transfer and limit how long the destination phone rings before telli cancels the attempt. This makes handoffs more predictable when nobody picks up and gives you more control over the transfer flow.

Warm transfer settings with briefing options and ringing duration limit

Warm transfer settings with briefing options and ringing duration limit

### Multilingual agents Agents can now be multilingual, and the language picker is easier to use across many supported languages. Open the language dropdown in agent settings to scan the full list or choose the multilingual option when one language is not enough for the workflow.

Agent language settings with the full language dropdown and multilingual option

Agent language settings with the full language dropdown and multilingual option

Search directly in the language dropdown when choosing an agent language
Call attempt intervals are easier to read with clearer attempt labels and timeline structure
Toast notifications have a cleaner, easier-to-scan design
The sidebar is restructured into clearer groups, making navigation easier to scan

Call audio is more stable, with fewer cases of choppy voice playback and unexpected noises
Warm transfer behavior is more reliable again after recent transfer issues

## Native Salesforce integration You can now connect [Salesforce](https://app.telli.com/_/settings/integrations/salesforce) in telli and keep contact and lead data in sync with your workspace. Open Settings > Integrations to connect your Salesforce org, review the connection state, and continue into mappings and sync setup from the same flow.

## Agent-level dialing windows and dashboard improvements You can now set dialing windows per agent instead of only at the account level. In the agent settings under "Auto Dialer", choose "Override dialing windows" to define a custom schedule for that specific agent. This is useful when different agents serve different regions or should dial at different times of day.

Agent-level dialing windows configuration

Agent-level dialing windows configuration

The dashboard now shows 6 key metrics instead of 4, with improved layout and better use of space
Dashboard charts show skeleton loading states while data is being fetched
Infrastructure improvements to the outbound call scheduler for higher throughput on large campaigns
You can now search calls in the telephony page

Fixed dashboard not being scrollable when there are many call outcomes
Fixed contact search breaking when the query contains special characters
Fixed contact sheet not warning about unsaved changes when closing

## Agent data collection and more languages You can now configure your agent to collect structured data from callers during a conversation. In the agent settings under "Data collection", define tasks for emails, license plates, or custom fields with validation rules. The agent will naturally ask for and confirm each piece of data during the call. After the call, collected values appear in the call details with status indicators.