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[Software] CX5100 & CX5500 Software 1.3.5

Polycom Employee & Community Manager

[Software] CX5100 & CX5500 Software 1.3.5

Poly announces the release of version 1.3.5 software for the Polycom CX5100 and CX5500 unified conference stations for Microsoft Lync and Skype for Business. 


What’s New

There are no new features in this release for software version 1.3.5. This release includes resolutions for customer-reported issues.

Third-Party Application ID Implementation on Skype for Business Phones


Microsoft announced the end of support for the existing Azure application ID currently used by third-party device vendors that use the OAuth 2.0 authorization protocol. To retain authentication to Microsoft services and the ability to sign in to Skype for Business, you must update the firmware to implement a third-party application ID on all impacted certified Skype for Business phones by July 15, 2020


Please check >here<

The title Polycom Employee & Community Manager is a community setting and does not reflect my role. I am just a simple volunteer in the community like everybody else. All posts and words are my own & do not represent the views of Employer.


Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels.
Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's
cx5100-cx5500-rn-1-3-5.pdf ‏470 KB
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