If no caller ID number is in the INVITE From field, Twilio uses the Remote-Party-ID or P-Asserted-Identity header instead.
Checked 2026-09-24
- Vendor
- Twilio
- Product
- Elastic SIP Trunking
- Subsystem
- termination
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Elastic SIP Trunking — Twilio · tier 2 current vendor documentation · Termination Settings > Allowed Caller ID Numbers in Termination calls
Cite this note
APA
WarmTransfer. (2026, September 24). Setting up an Asterisk PBX with Twilio Elastic SIP Trunking: source note asterisk-twilio-pbx-setup-caller-id-pai-fallback. WarmTransfer. https://warmtransfer.net/knowledge/claims/asterisk-twilio-pbx-setup-caller-id-pai-fallback
BibTeX
@misc{warmtransfer-claim-asterisk-twilio-pbx-setup-caller-id-pai-fallback,
title = {Setting up an Asterisk PBX with Twilio Elastic SIP Trunking: source note asterisk-twilio-pbx-setup-caller-id-pai-fallback},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/asterisk-twilio-pbx-setup-caller-id-pai-fallback},
note = {Source note asterisk-twilio-pbx-setup-caller-id-pai-fallback, checked 2026-09-24}
}