Source note · CUCM to Teams Phone migration
ForwardCallHistory and ForwardPai both default to False; turning on call history makes Microsoft 365 send History-Info and Referred-By headers, and turning on PAI also sends the Privacy:ID header.
Checked 2026-09-21
- Vendor
- Microsoft
- Product
- Teams Phone
- Subsystem
- direct-routing-signalling
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-21
- Checked
- 2026-09-21
Sources
- Connect your Session Border Controller (SBC) to Direct Routing — Microsoft · tier 2 current vendor documentation · SBC settings table, 'Forward call history' and 'Forward P-Asserted-identity (PAI) header' rows
Cite this note
APA
WarmTransfer. (2026, September 21). CUCM to Teams Phone migration: source note cucm-to-teams-phone-sbc-forward-headers. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-to-teams-phone-sbc-forward-headers
BibTeX
@misc{warmtransfer-claim-cucm-to-teams-phone-sbc-forward-headers,
title = {CUCM to Teams Phone migration: source note cucm-to-teams-phone-sbc-forward-headers},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-to-teams-phone-sbc-forward-headers},
note = {Source note cucm-to-teams-phone-sbc-forward-headers, checked 2026-09-21}
}