SIP Gateway supports only IPv4, even though the Teams service and client support both IPv4 and IPv6.
Checked 2026-10-02
SIP Gateway only supports IPv4.
- Vendor
- Microsoft
- Product
- Microsoft Teams SIP Gateway
- Subsystem
- network
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Configure SIP Gateway — Microsoft · tier 2 current vendor documentation · Configure SIP Gateway > Microsoft Teams and IPv6
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting phones signing in through Teams SIP Gateway: source note teams-sip-gateway-troubleshooting-ipv4-only. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-sip-gateway-troubleshooting-ipv4-only
BibTeX
@misc{warmtransfer-claim-teams-sip-gateway-troubleshooting-ipv4-only,
title = {Troubleshooting phones signing in through Teams SIP Gateway: source note teams-sip-gateway-troubleshooting-ipv4-only},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-sip-gateway-troubleshooting-ipv4-only},
note = {Source note teams-sip-gateway-troubleshooting-ipv4-only, checked 2026-10-02}
}