Retell AI outage history

Every smaller Retell AI incident

Minor and short incidents from the Retell AI status page, newest first, each with a line from the official updates. Times are UTC.

September 2026

• Sep 17, 2026, 01:35 UTC · Call service disruption

  duration not stated · rated "Major"

  "The issue has been found and resolved. About 22% of calls may have been affected and been ended early, or have no audio. A postmortem will be published by EOD 09-17."

• Sep 5, 2026, 23:10 UTC · Web Calls and Phone Calls Disruption

  1 hour 9 min · rated "Major"

  "The issue affecting web, outbound, and inbound calls has been resolved. All calling services are operating normally."

August 2026

• Aug 7, 2026, 21:55 UTC · Some inbound calls failing to connect

  26 minutes · rated "Minor"

  "Due to issues with an upstream provider, we are seeing connection issues for a portion of inbound calls. This is not widespread."

July 2026

• Jul 29, 2026, 14:00 UTC · Inbound calling not connecting

  1 hour 42 min · rated "Major"

  "The issue was identified as a datacenter issue from underlying telephony provider, where 2 out of 3 datacenters failed to deliver webhook to Retell backend server."

• Jul 14, 2026, 15:42 UTC · Batch calls failing

  50 minutes · marked as no impact

  "Outbound batch calls are failing. We are investigating the issue"

• Jul 1, 2026, 21:45 UTC · TTS provider 11labs v3 model is down

  1 hour 8 min · marked as no impact

  "The issue has been identified and a fix is being implemented."

June 2026

• Jun 24, 2026, 16:31 UTC · partial outage affecting incoming and ongoing call connections

  1 hour 34 min · rated "Major"

  "A fix has been implemented and we are monitoring the results."

• Jun 22, 2026, 07:00 UTC · Chats and calls unavailable for GPT-4o and 4o-mini

  2 hours 4 min · rated "Minor"

  "The incident has been resolved"

• Jun 12, 2026, 07:30 UTC · Platform voice Grace and Nico not working

  9 hours 14 min · rated "Minor"

  "The issue is resolved now"

May 2026

• May 28, 2026, 15:00 UTC · Certain calls are not being picked up in time

  1 hour 30 min · rated "Minor"

  "This incident has been resolved. It was due to a connection issue in one of the data centers for the telephony provider. We are adding more fallback routes there."

• May 25, 2026, 21:09 UTC · Call/chat history, analytics and QA dashboard down

  30 minutes · rated "Major"

  "The issue has been fixed and all services are back to working."

• May 8, 2026, 03:00 UTC · Agent reading and publishing broken

  duration not stated · rated "Major"

  "agent publishing and get agent was broken for ~1 hour - returned server error. Calling was not affected"

April 2026

• Apr 13, 2026, 23:47 UTC · KB Retrieval and QA Failure

  28 minutes · rated "Minor"

  "The KB retrieval and QA experienced an issue due to an unintended code change. The issue has been resolved, and we are actively monitoring the systems to ensure continued stability."

March 2026

• Mar 16, 2026, 18:41 UTC · Batch calls not sent

  40 minutes · rated "Minor"

  "Starting ~13:32 UTC (8:32 AM PT), batch calls were not being sent due to an internal issue that was triggered in our system. We've identified the root cause and are actively working on a fix."

• Mar 16, 2026, 04:39 UTC · Custom LLM calls failing to start

  15 minutes · rated "Minor"

  "19:38 PST: custom LLM calls started failing to start due to a bad release. Other types of calls are not impacted. 21:35 PST: a fix is being rolled out, we are keep monitoring the issue."

• Mar 4, 2026, 22:34 UTC · MiniMax TTS issue

  duration not stated · marked as no impact

  "Between 1:25-2:08pm PT, a provider-side rate-limit configuration issue caused some TTS requests to be silently dropped."

• Mar 4, 2026, 18:21 UTC · Small portion of community voice not working

  duration not stated · marked as no impact

  "There was an accidental change in the logic of account cleanup that led to the deletion of small portion of community voice resources, which caused those agents with the voice having issues."

February 2026

• Feb 20, 2026, 21:43 UTC · Telynx - SIP Trunking Service Degradation

  2 hours 17 min · rated "Minor"

  "We are currently experiencing service degradation affecting SIP trunking through our upstream provider, Telnyx. This may result in call connection issues. https://status.telnyx.com/"

• Feb 10, 2026, 22:12 UTC · Calls failing to start and concurrency stuck

  6 minutes · rated "Major"

  "Calls and concurrency should be back to normal."

January 2026

• Jan 27, 2026, 22:30 UTC · Scheduled batch calls not running

  duration not stated · rated "Minor"

  "Scheduled batch calls did not run from 2:35 PM to 5:15 PM PST. The service has now recovered. Any batch calls whose scheduling window still included 5:15 PM were executed at that time."

• Jan 22, 2026, 23:37 UTC · Multilingual transcription issues

  11 minutes · rated "Major"

  "The issue appears to be resolved and multilingual transcription is recovering. We'll keep monitoring to ensure stability."

• Jan 9, 2026, 08:30 UTC · Outbound Calling Service Degradation

  1 hour 56 min · rated "Major"

  "The issue has been fixed"

December 2025

• Dec 30, 2025, 21:20 UTC · ASR configuration bug

  45 minutes · rated "Major"

  "A recent code change introduced an issue in the ASR module that may cause some agents to go offline. We are working on a fix actively."

• Dec 16, 2025, 15:10 UTC · Call and API failures due to Stripe outage

  31 minutes · rated "Major"

  "For around 30 minutes, calls and API requests failed due to an issue with Stripe. The outage occurred between 7:10 and 7:40 PST. This has been identified as an outage from our payment provider (Stripe)."

• Dec 10, 2025, 20:41 UTC · Transcription error for non English traffic

  duration not stated · marked as no impact

  "For around 20 minutes, there was a spike of transcription error for certain non English traffic (notably multilingual, Spanish, etc). English traffic was not impacted. This has been identified as outages from underlying providers."

November 2025

• Nov 26, 2025, 18:48 UTC · Telnyx calls encountering telephony provider permission denied

  4 minutes · rated "Minor"

  "This has been resolved now. This is related to an elastic IP issue, which is mitigated now."

October 2025

• Oct 28, 2025, 19:28 UTC · Intermittent Call Connection Failures

  duration not stated · marked as no impact

  "From 11:10 AM - 11:34 AM PST, we observed that inbound calls were experiencing connection issues and timeouts. We have identified the issue as being caused by a brief outage with our telephony provider."

• Oct 20, 2025, 19:02 UTC · AWS outage causing some login issues, and history and analytics issue. Calls are NOT impacted.

  5 hours 40 min · rated "Minor"

  "Starting from Oct 20 1am PST, the AWS outage has caused some login issues, and call history and analytics issues. Regular calls are NOT impacted. Once the AWS outage is over, we will backfill the analytics."