Direct Routing SIP/TLS signalling from the SBC to the Microsoft SIP proxy uses destination port 5061, while traffic from the Microsoft SIP proxy to the SBC uses the port configured on the SBC.

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

Cite this note

APA

WarmTransfer. (2026, September 21). CUCM to Teams Phone migration: source note cucm-to-teams-phone-sip-port-5061. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-to-teams-phone-sip-port-5061

BibTeX

@misc{warmtransfer-claim-cucm-to-teams-phone-sip-port-5061,
  title  = {CUCM to Teams Phone migration: source note cucm-to-teams-phone-sip-port-5061},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-to-teams-phone-sip-port-5061},
  note   = {Source note cucm-to-teams-phone-sip-port-5061, checked 2026-09-21}
}

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