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Skype for Business Blog
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Skype for Business Certified IP Phones with Microsoft Teams

KruthikaPonnusamy's avatar
KruthikaPonnusamy
Icon for Microsoft rankMicrosoft
Nov 13, 2018
For a complete, enriched Teams experience, we recommend customers use certified IP phones running Microsoft Teams natively and available on Teams Marketplace.   If customers have IP phones certif...
Updated Nov 16, 2018
Version 3.0
devices
Interoperability
microsoft teams
Product Updates
Skype for Business
Voice
Wim Allegaert's avatar
Wim Allegaert
Copper Contributor
Dec 02, 2020

I searched further on it:

 

If I disable ICE on the VVX201 phone, (tcpIpApp.ice.mode="Disabled") the call termination issue is gone. But so does the sound.

 

Also following topic mentions something which might be related:

https://community.polycom.com/t5/Microsoft-UC-Platforms/vvx411-5-6-0-Calls-disconnected-after-26-seconds-through-our-ACD/td-p/94709

 

 

I noted on the https://support.polycom.com/content/dam/polycom-support/products/Voice/business_media_phones/release-notes/en/uc-software-5-6-2-release-notes.pdf two items of interest that are resolved bugs:

 

Call Management EN-64080 -  On the VVX business media phone, calls fail after 30 seconds when the gateway sends a REFRESH INVITE before ICE reINVITE is completed.

 

Call Management EN-61910 - When the VVX business media phone sends ICE connectivity directly and not through the relay, the call gets disconnected after 30 seconds.