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.

Conference phones

Manufacturer Model Version Qualification Date
Yealink CP960 73.8.0.27 6/30/2018
Polycom RealPresence Trio 8800 5.5.4.2255 3/09/2017

Desk phones

Manufacturer Model Version Qualification Date
AudioCodes 445HD IP Phone 3.1.2.89 12/21/2018
AudioCodes 450HD IP Phone 3.0.4.120 1/12/2018
AudioCodes 405HD IP Phone 3.0.1.89 6/14/2017
AudioCodes 440HD IP Phone 3.0.1.89 5/23/2017
AudioCodes 430HD IP Phone UC430HD_2.0.3.19 7/02/2014
AudioCodes 420HD IP Phone UC420HD_2.0.1.44.9 10/01/2013
Crestron Flex UC-P100-S IP Phone (upgradeable to Teams) 55.66.91.11 03/14/2019
Crestron Flex UC-P110-S IP Phone (upgradeable to Teams) 55.66.91.11 03/14/2019
Polycom VVX 201 Business Media Phone 5.9.0.9373 1/22/2019
Polycom VVX 300/310 Business Media Phone 5.9.0.9373 1/22/2019
Polycom VVX 301/311 Business Media Phone 5.9.0.9373 1/22/2019
Polycom VVX 400 Business Media Phone 5.9.0.9373 1/22/2019
Polycom VVX 401 Business Media Phone 5.9.0.9373 1/22/2019
Polycom VVX 410 Business Media Phone 5.9.0.9373 1/22/2019
Polycom VVX 411 Business Media Phone 5.9.0.9373 1/22/2019
Polycom VVX 500 Business Media Phone 5.9.0.9373 1/22/2019
Polycom VVX 501 Business Media Phone 5.9.0.9373 1/22/2019
Polycom VVX 600 Business Media Phone 5.9.0.9373 1/22/2019
Polycom VVX 601 Business Media Phone 5.9.0.9373 1/22/2019
Polycom Trio Series 8800/8500 IP Phone 5.5.2.11338 10/9/2018
Polycom VVX 250 Business IP Phone (On-prem only) 5.8.0.12848 8/27/2018
Polycom VVX 350 Business IP Phone (On-prem only) 5.8.0.12848 8/27/2018
Polycom VVX 450 Business IP Phone (On-prem only) 5.8.0.12848 8/27/2018
Yealink T55 IP Phone (upgradeable to Teams) 55.9.0.9 3/12/2019
Yealink T56A IP Phone (upgradeable to Teams) 58.15.0.20 12/30/2018
Yealink T58A IP Phone (upgradeable to Teams) 58.15.0.20 12/30/2018
Yealink T46S IP Phone 66.9.0.23 4/21/2018
Yealink T48S IP Phone 66.9.0.23 4/21/2018
Yealink T41S IP Phone 66.9.0.23 11/30/2017
Yealink T42S IP Phone 66.9.0.23 11/30/2017
Yealink T41P IP Phone x.8.1.62 7/04/2017
Yealink T42G IP Phone x.8.1.62 7/04/2017
Yealink T46G IP Phone 28.8.1.52 2/11/2017
Yealink T48G IP Phone 35.8.1.52 2/11/2017
Yealink T40P IP Phone 54.8.0.13 4/29/2016
Spectralink 84-Series Wireless Telephones 4.6.0.0008 9/10/2013
Spectralink 7000 Portfolio Handsets PCS13Eb 9/04/2013

Additional Resources

Browse all devices Certified for Teams.

Learn about Skype for Business certification

Find details of our qualified IP Phones