For Cisco 6821-6871, 7811-7861 and 8811-8865 phones, SIP Gateway's minimum firmware is 11.1.1MPP and the approved version is 12-0-7MPP; the Cisco 8832 minimum is 11.3.5MPP.
Checked 2026-10-02
- Vendor
- Microsoft
- Product
- Microsoft Teams SIP Gateway
- Subsystem
- firmware
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- compatibility table as of 2026-07-06 page update
- Checked
- 2026-10-02
Sources
- Plan SIP Gateway — Microsoft · tier 2 current vendor documentation · Plan SIP Gateway > Compatible devices table > Cisco rows
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting phones signing in through Teams SIP Gateway: source note teams-sip-gateway-troubleshooting-cisco-78-88-min-fw. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-sip-gateway-troubleshooting-cisco-78-88-min-fw
BibTeX
@misc{warmtransfer-claim-teams-sip-gateway-troubleshooting-cisco-78-88-min-fw,
title = {Troubleshooting phones signing in through Teams SIP Gateway: source note teams-sip-gateway-troubleshooting-cisco-78-88-min-fw},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-sip-gateway-troubleshooting-cisco-78-88-min-fw},
note = {Source note teams-sip-gateway-troubleshooting-cisco-78-88-min-fw, checked 2026-10-02}
}