The approved SIP Gateway firmware is 124.86.0.147 for Yealink T30, T30P, T31G, T31P and T33G, 96.86.5.1 for T53, T53W, T54W and T57W, and 108.86.5.1 for T42U, T43U, T46U and T48U. The minimum firmware column shows '83' for every Yealink desk phone.

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-approved-fw. WarmTransfer. https://warmtransfer.net/knowledge/claims/yealink-phones-uc-sipgw-approved-fw

BibTeX

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

Read in context