With ForwardPai enabled, Direct Routing reports the calling user's TEL URI and SIP address in P-Asserted-Identity, which Microsoft describes as useful for billing when the displayed caller ID is Anonymous or a company main number.
Checked 2026-10-02
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- Set-CsOnlinePSTNGateway
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Set-CsOnlinePSTNGateway (MicrosoftTeams) — Microsoft · tier 2 current vendor documentation · Examples > Example 2
Cite this note
APA
WarmTransfer. (2026, October 2). SIP identity headers: P-Asserted-Identity and Diversion and History-Info: source note sip-identity-headers-teams-pai-billing-use. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-identity-headers-teams-pai-billing-use
BibTeX
@misc{warmtransfer-claim-sip-identity-headers-teams-pai-billing-use,
title = {SIP identity headers: P-Asserted-Identity and Diversion and History-Info: source note sip-identity-headers-teams-pai-billing-use},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-identity-headers-teams-pai-billing-use},
note = {Source note sip-identity-headers-teams-pai-billing-use, checked 2026-10-02}
}