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Poly VVX 601 Firmware 6.3.1.11465 Teams Call Connect Inbound Issue

techlogik
Frequent Advisor

Poly VVX 601 Firmware 6.3.1.11465 Teams Call Connect Inbound Issue

So, migrated everybody over to Teams native on our M365 Tenant 4 weeks ago.  Happen to update our VVX 601 phones to the latest Certified Firmware for Skype, which is 6.3.1.1465 as noted in the title.

 

After the migration, we started getting complaints that inbound calls from the PSTN when you pickup, just silence, after 6 seconds or so, it drops the call.  Call back, it works fine.  We could replicate this on multiple phones, including my own by just performing a bunch of calls from my cell phone, and it would pretty quickly within a few calls not connect and go silent/drop.

 

Rolled back to firmware 6.2.1.1508 on my phone, and it never fails and works every time.  The windows soft client or web client works flawlessly and always answer as well. So we isolated this to the latest firmware.

 

With that said, contacted Microsoft, sadly they are useless as usual. They claim the VVX 601 isn't supported with Teams. I even gave them the article by Microsoft stated the 3PIP support and natively working until beyond 2023 with supported firmware. 

 

Anyway, I only found one article that dates back to 11/2020 that states the official firmware supported is 5.9.0.9373 for Skype to work with 3PIP.  But, not sure if this is just outdated and anything later is supposed to work with caveats of course??  All I know is the 6.2.1.1508 does work reliably and we can't replicate the call silence/drop issue anymore.  So I rolled all phones back to this version and complaints have gone away.

 

Any others with input/testing related to VVX and skype firmware and Teams integration experience appreciated.

 

Also, how does one go about verifying your are connecting via the 3PIP gateway MS is supposedly routing us through? Can't find any info on that either. Guess it is just magically happening and take their word for it since it connects and works? Yet I do see in the Skype phone web info that lync.com whatever is what it is connecting to. Not sure if that means 3PIP...or if MS is still using lync nomenclature for Teams environment/infrastructure DNS etc.

 

Thanks

Message 1 of 5
4 REPLIES 4
SteffenBaierUK
Polycom Employee & Community Manager

Re: Poly VVX 601 Firmware 6.4.1.2280 Teams Call Connect Inbound Issue

Hello @techlogik ,

 

Welcome back to the Poly Community.

  • 6.4.x is not Skype for Business certified
  • 6.3.x is Skype for Business certified

 

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

Best Regards

Steffen Baier

----------------
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.

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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
Message 2 of 5
techlogik
Frequent Advisor

Re: Poly VVX 601 Firmware 6.4.1.2280 Teams Call Connect Inbound Issue

Apologies...I put the wrong firmware that is causing the issue.  I know 6.4 isn't supported and won't login.

 

Corrected my first post.

 

6.3.1.11465 has the issue.

 

6.2.1.1508 doesn't and works fine.

 

 

Message 3 of 5
SteffenBaierUK
Polycom Employee & Community Manager

Re: Poly VVX 601 Firmware 6.4.1.2280 Teams Call Connect Inbound Issue

Hello @techlogik ,

 

there is a difference between what Microsoft certifies and then also certified maintenance versions we have on top of these and we provide the support if issues are found.

 

The support is only if the unit is in warranty or maintenance.

 

If 6.2.x works for you is there a need for 6.3.1?

 

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

Best Regards

Steffen Baier

----------------
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
Message 4 of 5
techlogik
Frequent Advisor

Re: Poly VVX 601 Firmware 6.4.1.2280 Teams Call Connect Inbound Issue

Ok, gotcha on the releases. No, no need for the new version, the one that is working, as long as it keeps working, good enough until, like many customers, we can budget and plan on moving forward and replacing the current phones with new Teams certified phones, or use the soft client only etc...

 

Thanks

Message 5 of 5