IP Phones

Microsoft has tested and certified IP phones through our Certification Programs, which reflect an evolution from the previous basic interop compatibility ("Compatible with Lync”) to increasingly higher quality bars, including metrics targeting higher reliability. Phone vendors have been actively working to meet this service level and have qualified a wide range of phone models against these requirements.

In the meantime, Skype for Business supports backwards compatibility with all of our Lync qualified IP phones.

Basic functionalities will continue to work on Skype for Business certified devices when a user switches to Microsoft Teams. However, in order to be Teams certified, phone vendors would need to meet the new requirements for Teams certification.

Certified Skype for Business devices

Manufacturer Model Version
AudioCodes C450HD IP Phone UCC450HD_3.2.0.1003.61
AudioCodes 440HD IP Phone UC440HD_3.1.3.144.18
AudioCodes 430HD IP Phone UC430HD_3.1.3.144.18
AudioCodes 445HD IP Phone 3.1.2.89
AudioCodes 405HD 3.0.1.89.1
Crestron Flex UC-P100-S IP Phone (upgradeable to Teams) 55.66.91.11
Crestron Flex UC-P110-S IP Phone (upgradeable to Teams) 55.66.91.11
Poly Trio C60 5.9.3.7392
Poly CCX 400 IP Phone 6.2.11.1475
Poly CCX 600 IP Phone 5.9.12.1111
Poly CCX 500 IP Phone 1.0.0.2535
Polycom VVX 201 Business Media Phone 5.9.0.9373
Polycom VVX 300/310 Business Media Phone 5.9.0.9373
Polycom VVX 301/311 Business Media Phone 5.9.0.9373
Polycom VVX 400 Business Media Phone 5.9.0.9373
Polycom VVX 401 Business Media Phone 5.9.0.9373
Polycom VVX 410 Business Media Phone 5.9.0.9373
Polycom VVX 411 Business Media Phone 5.9.0.9373
Polycom VVX 500 Business Media Phone 5.9.0.9373
Polycom VVX 501 Business Media Phone 5.9.0.9373
Polycom VVX 600 Business Media Phone 5.9.0.9373
Polycom VVX 601 Business Media Phone 5.9.0.9373
Yealink MP56 IP Phone 122.9.0.1
Yealink T55 IP Phone (upgradeable to Teams) 55.9.0.9
Yealink T56A IP Phone (upgradeable to Teams) 58.15.0.20
Yealink T58A IP Phone (upgradeable to Teams) 58.15.0.20
Yealink MP54 IP Phone 122.9.0.5
Yealink MP58 IP Phone 122.9.0.5

Additional Resources

Browse all devices Certified for Teams.

Learn about Skype for Business certification.

Find details of our qualified IP Phones.