For Yealink DECT base stations on SIP Gateway, Microsoft says to use the region-specific firmware. For example, the W70B approved versions are 146.85.5.4 NOAM, 146.85.5.2 EMEA and 146.85.5.3 APAC.

Checked 2026-09-25

Vendor
Microsoft
Product
Teams SIP Gateway
Subsystem
device compatibility
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-25
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Yealink phones on UC platforms: source note yealink-phones-uc-sipgw-dect-region-fw. WarmTransfer. https://warmtransfer.net/knowledge/claims/yealink-phones-uc-sipgw-dect-region-fw

BibTeX

@misc{warmtransfer-claim-yealink-phones-uc-sipgw-dect-region-fw,
  title  = {Yealink phones on UC platforms: source note yealink-phones-uc-sipgw-dect-region-fw},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/yealink-phones-uc-sipgw-dect-region-fw},
  note   = {Source note yealink-phones-uc-sipgw-dect-region-fw, checked 2026-09-25}
}

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