Source note · IPv6 for voice and UC platforms
The Direct Routing IPv6 signalling FQDNs resolve to the Microsoft range 2603:1063:400::/40. SIP/TLS from the SBC goes to port 5061, as it does over IPv4.
Checked 2026-10-02
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- Firewall / signalling
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Plan Direct Routing — Microsoft (Microsoft Learn) · tier 2 current vendor documentation · Sections 'SIP signaling: FQDNs' (IPv6 range) and 'SIP signaling ports'
Cite this note
APA
WarmTransfer. (2026, October 2). IPv6 for voice and UC platforms: source note ipv6-voice-teams-dr-ipv6-signaling-range. WarmTransfer. https://warmtransfer.net/knowledge/claims/ipv6-voice-teams-dr-ipv6-signaling-range
BibTeX
@misc{warmtransfer-claim-ipv6-voice-teams-dr-ipv6-signaling-range,
title = {IPv6 for voice and UC platforms: source note ipv6-voice-teams-dr-ipv6-signaling-range},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/ipv6-voice-teams-dr-ipv6-signaling-range},
note = {Source note ipv6-voice-teams-dr-ipv6-signaling-range, checked 2026-10-02}
}