Source note · Teams Phone Mobile
Microsoft Phone System adds X-MS-FMC headers to Teams Phone Mobile calls, and Mobile Control Point used them to avoid re-querying Microsoft Phone System in a loop.
Checked 2026-09-25
- Vendor
- Microsoft
- Product
- Azure Communications Gateway
- Subsystem
- sip-signaling
- Deployment
- operator-side
- Region
- not restricted
- Release range
- Azure Communications Gateway before 2025-10-30 retirement
- Checked
- 2026-09-25
Sources
- Mobile Control Point in Azure Communications Gateway for Teams Phone Mobile — Microsoft · tier 2 current vendor documentation · SIP signaling (X-MS-FMC condition list and following sentence)
Cite this note
APA
WarmTransfer. (2026, September 25). Teams Phone Mobile: source note teams-phone-mobile-x-ms-fmc-header. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-phone-mobile-x-ms-fmc-header
BibTeX
@misc{warmtransfer-claim-teams-phone-mobile-x-ms-fmc-header,
title = {Teams Phone Mobile: source note teams-phone-mobile-x-ms-fmc-header},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-phone-mobile-x-ms-fmc-header},
note = {Source note teams-phone-mobile-x-ms-fmc-header, checked 2026-09-25}
}