32221: Dialing SIP Endpoint failure - No devices registered in specified edge

This error occurs when you dial a registered SIP endpoint by using an edge-specific SIP URI, but no device for that address of record is currently registered through that edge. When you call a registered SIP endpoint, use your SIP domain's global URI in the format username@yourdomain.sip.twilio.com unless you intentionally rely on legacy us1 or us1-ix behavior.

• Your application is dialing an edge-specific or legacy regional URI such as username@yourdomain.sip.us1.twilio.com, but the endpoint is registered through a different edge.
• Your SIP devices are registering through an unexpected edge because the Registration Domain or Outbound Proxy is configured incorrectly.
• You are migrating from legacy us1 or us1-ix registration and some devices now register through other edge locations while your application still dials an edge-specific URI.
• The endpoint is registered, but only on other edge locations and not on the edge you specified in the URI.

• Update your TwiML or REST API request to dial the global SIP domain URI, such as username@yourdomain.sip.twilio.com.
• If your SIP client supports separate settings, set the Registration Domain to yourdomain.sip.twilio.com and set the Outbound Proxy to the edge closest to the device, such as sip.sydney.twilio.com.
• If you want to keep using legacy us1 or us1-ix dialing behavior, make sure the device is actually registered through the Ashburn edge that matches that URI.
• Review the Registered SIP Endpoints tab on your SIP Domain and confirm which edge each device is using.
• Reconfigure devices that are registering through the wrong edge, or disable SIP Registration on devices that should not register.

• SIP Registration
• Receiving SIP from Twilio
• SIP URIs