32220: Specifying an edge is not allowed when dialing SIP registered endpoints

Use the global SIP Domain URI when you call a registered endpoint. Twilio supports localized SIP URIs for device registration, but Twilio does not support dialing a registered endpoint by using an edge-specific domain such as yourdomain.sip.ashburn.twilio.com. When you call a registered address of record, Twilio forks the call to all devices registered under the same username and domain.

• You attempted to place a call to a registered endpoint by using an edge-specific SIP Domain such as username@yourdomain.sip.ashburn.twilio.com.
• Your application used another localized edge variant such as ashburn-ix, umatilla, dublin, frankfurt, singapore, tokyo, sao-paulo, or sydney when dialing the registered endpoint.
• Your application still relies on legacy regional dialing behavior. Twilio allows us1 and us1-ix only for backward compatibility in limited cases, and Twilio recommends removing that dependency.

• Dial the registered endpoint by using your global SIP Domain URI, for example username@yourdomain.sip.twilio.com.
• Keep using localized SIP URIs only for device registration or network ingress selection, not for the destination URI when you call a registered address of record.
• If you still use legacy us1 or us1-ix behavior, update your calling logic to use the global SIP Domain URI so new calls do not fail with this error.

• SIP Registration
• SIP URIs
• Regional SIP Domains