Hello RonR,
5.4.4 is the latest officially Skype / LYNC certified build which is currently publicly available.
I cannot comment on future releases as this would require a NDA / non-disclosure agreement.
If you want to use Skype / LYNC certified builds, which Polycom will support, then you need to downgrade.
If you want more details on future builds please work with your Polycom reseller and/or provide me with details via community mail so I can get you in touch with a Polycom sales engineer.
Please also provide me with a MAC address of one of your phones.
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
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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. My official "day" Job is 3rd Level support at Poly but I am unable to provide official support via the community.
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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
