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Polycom VVX 500 Failed Sign-in to Skype Online

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Polycom VVX 500 Failed Sign-in to Skype Online

We are building a lab for testing Polycom VVX 500 phones to O365 tenant connecting to Skype Online.    We are able to sign-on from the Skype 2016 client and make voice calls.   Then we attempted to register the VVX 500 phone logging on to the same sip account on the laptop.


It fails to connect and looking at the log files, we are receiving a DNS lookup failure to O365 tenant as well as failure to update the configuration file.


The UC software version on the phone is with Updater Version -


I have attached the latest log file.  


Any help would be much appreciated.




Polycom Employee & Community Manager

Re: Polycom VVX 500 Failed Sign-in to Skype Online

Hello MMitchell21,

welcome to the Polycom Community.

UC Software 5.5.0 was never qualified to use with LYNC or Skype for Business. Please utilize a supported Version like UC Software 5.5.2 instead.

Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.

Best Regards

Steffen Baier

Polycom Global Services

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
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