Twilio Services
Issues related to Twilio’s Software
    External Connectivity
    Issues found outside of Twilio’s Network
      Zipwhip Gateway
      Issues related to Zipwhip's Services
        Scheduled maintenance
        System Metrics

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

        Incident Report for Twilio

        Resolved

        This incident has been resolved.
        Posted Sep 24, 2026 - 11:02 PDT

        Update

        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.
        Posted Sep 24, 2026 - 10:56 PDT

        Update

        We are continuing to investigate this issue.
        Posted Sep 24, 2026 - 10:38 PDT

        Update

        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.
        Posted Sep 24, 2026 - 10:36 PDT

        Investigating

        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.
        Posted Sep 24, 2026 - 10:19 PDT
        This incident affected: ELASTIC SIP TRUNKING US1 (Origination US1, Termination US1), ELASTIC SIP TRUNKING AU1 (Origination AU1, Termination AU1), and ELASTIC SIP TRUNKING IE1 (Origination IE1, Termination IE1).