For failures to make or receive calls on a SIP Gateway device, Microsoft says to check the device is registered, restart it, and test the same call to or from the same remote address in the Teams app.
Checked 2026-10-02
- Vendor
- Microsoft
- Product
- Microsoft Teams SIP Gateway
- Subsystem
- calling
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Common Issues When Using SIP Devices With Teams — Microsoft · tier 2 current vendor documentation · Common Issues When Using SIP Devices With Teams > I can't make calls; I can't receive calls
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting phones signing in through Teams SIP Gateway: source note teams-sip-gateway-troubleshooting-call-fail-compare-app. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-sip-gateway-troubleshooting-call-fail-compare-app
BibTeX
@misc{warmtransfer-claim-teams-sip-gateway-troubleshooting-call-fail-compare-app,
title = {Troubleshooting phones signing in through Teams SIP Gateway: source note teams-sip-gateway-troubleshooting-call-fail-compare-app},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-sip-gateway-troubleshooting-call-fail-compare-app},
note = {Source note teams-sip-gateway-troubleshooting-call-fail-compare-app, checked 2026-10-02}
}