A P-Asserted-Identity header may carry one value (a SIP, SIPS or tel URI) or two values, in which case one is a SIP or SIPS URI and the other a tel URI.
Checked 2026-10-02
- Vendor
- not restricted
- Product
- not restricted
- Subsystem
- P-Asserted-Identity
- Deployment
- multi-tenant, on-premises
- Region
- not restricted
- Release range
- RFC 3325
- Checked
- 2026-10-02
Sources
- RFC 3325: Private Extensions to the Session Initiation Protocol (SIP) for Asserted Identity within Trusted Networks — IETF / RFC Editor · tier 1 standards and regulators · Section 9.1 (The P-Asserted-Identity Header)
Cite this note
APA
WarmTransfer. (2026, October 2). SIP identity headers: P-Asserted-Identity and Diversion and History-Info: source note sip-identity-headers-pai-one-or-two-values. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-identity-headers-pai-one-or-two-values
BibTeX
@misc{warmtransfer-claim-sip-identity-headers-pai-one-or-two-values,
title = {SIP identity headers: P-Asserted-Identity and Diversion and History-Info: source note sip-identity-headers-pai-one-or-two-values},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-identity-headers-pai-one-or-two-values},
note = {Source note sip-identity-headers-pai-one-or-two-values, checked 2026-10-02}
}