Potential Support Response Time Delays Due to Surge in Toll-Free Queries: We’re experiencing a surge in inquiries due to the November 8, 2023 Toll-Free Restricted Traffic Shutdown Deadline. We’re committed to helping you; please bear with us as there might be some delays. For more details, see Toll-Free Message Verification for US/Canada.

Does Elastic SIP Trunking alter the caller ID on calls?

Elastic SIP Trunking does not alter the Caller ID for calls:

  • Outgoing calls on a Twilio Elastic SIP trunk (SIP Termination) must use a valid Twilio phone number owned on this project, or a verified Caller ID (using E.164 formatting).
  • Incoming calls on a Twilio Elastic SIP trunk (SIP Origination) will have the originating caller ID Twilio receives passed along with the SIP INVITE (using E.164 formatting).

This being said, it's possible for Caller IDs in general to be changed in transit for a number of reasons. For more details, please see the following resources:

Have more questions? Submit a request
We can’t wait to see what you build.
Powered by Zendesk