On Twilio termination, received Diversion headers are forwarded to carriers, but any Diversion header containing the Twilio domain that fails Twilio's ownership check is removed.
Checked 2026-10-02
- Vendor
- Twilio
- Product
- Elastic SIP Trunking
- Subsystem
- Termination
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Elastic SIP Trunking — Twilio · tier 2 current vendor documentation · SIP Diversion Headers > Trunking Termination
Cite this note
APA
WarmTransfer. (2026, October 2). SIP identity headers: P-Asserted-Identity and Diversion and History-Info: source note sip-identity-headers-twilio-term-diversion. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-identity-headers-twilio-term-diversion
BibTeX
@misc{warmtransfer-claim-sip-identity-headers-twilio-term-diversion,
title = {SIP identity headers: P-Asserted-Identity and Diversion and History-Info: source note sip-identity-headers-twilio-term-diversion},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-identity-headers-twilio-term-diversion},
note = {Source note sip-identity-headers-twilio-term-diversion, checked 2026-10-02}
}