Some Transfer Calls in Elastic SIP Trunking Failing With Error Code 32204

What to do

• Check whether you use Twilio Origination US1, Origination AU1, Origination IE1, Termination US1 and 2 more. Check your stack

  Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.

• Confirm your retries, queues and scheduled jobs caught up after the 43m it lasted.

  Anything that failed between 2026-09-24 17:19 UTC and 2026-09-24 18:02 UTC may need a replay.

• Subscribe to Twilio's feed to hear about the next one first. RSS feed

  https://down.guide/feed?provider=twilio works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from Twilio 5

1. investigatingSep 24, 2026, 5:19 PM UTC

   Our monitoring systems have detected a potential issue with Voice. Our engineers have been alerted and are investigating. We will provide an update when we have more details.

   provider

2. investigatingSep 24, 2026, 5:36 PM UTC

   Transfer calls done via SIP REFER in Elastic SIP Trunking is Failing With Error Code 32204, our engineers are actively working on this and will provide an update in 1 hour or as soon as more information is available.

   provider

3. investigatingSep 24, 2026, 5:38 PM UTC

   We are continuing to investigate this issue.

   provider

4. investigatingSep 24, 2026, 5:56 PM UTC

   Transfer calls done via SIP REFER in Elastic SIP Trunking are no longer Failing With Error Code 32204, we'll monitor for 30 minutes and will share more info if it becomes available.

   provider

5. resolvedSep 24, 2026, 6:02 PM UTC

   This incident has been resolved.

   provider

Corrections

None so far.

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