• ×
    Information
    Windows update impacting certain printer icons and names. Microsoft is working on a solution.
    Click here to learn more
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
  • ×
    Information
    Windows update impacting certain printer icons and names. Microsoft is working on a solution.
    Click here to learn more
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
Guidelines
The HP Community is where owners of HP products, like you, volunteer to help each other find solutions.
HP Recommended

I've ran into a strange issue that I can only replicate on the VVX 410 and VVX 411.  Running Version 5.6.0, and now 5.6.1.  Conference calls fail to establish when using the conference softkey to convert an in-progress call to a Skype Conference Call.  This does not seem to affect the VVX310 or VVX600 phones I've tried it on.  We run an on prem S4B environment, and all devices are connected via edge.

 

Steps to reproduce:

Call a PSTN number

Press Conference Softkey

Dial another number (can be PSTN, or Internal Skype Ext)

"connecting to conference" is displayed for about 30 seconds, then the call drops.

 

Oddly, this also only happens when the original call is to a PSTN user.  Looking at packet captures for said failures, on the VVX410/411's the captures are full of repeated STUN attempts, on the other models, the STUN looks like any other call, and the conference service bridges the two calls together like a normal skype for business conference.  All testing has been done with configs from the same provisioning server, with phones on the same switch, behind the same firewall, connecting to the same edge server, etc..

 

Unfortunately, at this time, I have no in-warranty devices to open a ticket.  I've opened a ticket with microsoft - since the issue appeared to be with the conferencing service initially.  They validated the configuration and said everything looks fine with our on-prem topology in thier point of view.  I'm hoping someone in the community might be able to provide suggestions.

1 REPLY 1
HP Recommended

Hello @Andy_OSI,

welcome to the Polycom Community.

First of all the warranty status should not hinder you to open a ticket as you simply would pay per incident / PPI.

 

I assume Microsoft support does also charge you for their support?

 

Usually all our phones should behave the same as they are using the same software but as you did not post any kind of logs or backups or traces there is not a lot we can try and guess.


Best Regards

Steffen Baier

Polycom Global Services

------------------------------------------------
Notice: I am an HP Poly employee but all replies within the community are done as a volunteer outside of my day role. This community forum is not an official HP Poly support resource, thus responses from HP Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge.
If you need immediate and/or official assistance for former Poly\Plantronics\Polycom please open a service ticket through your support channels
For HP products please check HP Support.

Please also ensure you always check the General VoIP , Video Endpoint , UC Platform (Microsoft) , PSTN
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.