Forum Discussion
Calls from Polycom VVX phones to call queue dropped after 30 seconds when picked up by Teams client
- Hello Ryan,
Please get a case opened at Poly support. I'm from the escalations team and currently working this issue with our development team. I have reproduced it internally and provided all the info for code analysis.
As a side note, Poly and Microsoft recommend the usage of the latest maintenance release built on top of a qualified release, at the time of this post, 5.9.3. Maintenance releases are automatically qualified.
Thank you
Silence from Office 365 support so far.
Ryan Steele Any chance that the sites you're experiencing the issue with are using Palo Alto firewalls? We narrowed the issue down to the firewall as the same phone off their network works perfectly fine. Narrowing down the NAT to a 1-to-1 also resolved, but not tenable for hundreds of phones, so something is up with the pool of IP's being used for proxying to the internet. The client has engaged with the Palo to find a resolution.
Renewing the mantra, "Its the network"...
Korbyn No Palo Alto hardware in our shop, and I've tried calling the call queue from a phone that's off our network and have had the same issue.
From what the Poly tech has shared with me, it sounds like the issue in this specific case may be due to a problem with Microsoft's interpretation of the SIP protocol.
Ryan Steele this is now working in our environment. I can't think of anything that we changed so I am assuming MS did something to correct the issue on the back end.
Thanks walter-wodzien. I've just tried a test call and it dropped as before, but maybe I just need to wait for this update to roll out to our tenant.
