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Polycom Trio and Zoom Configruation


Polycom Trio and Zoom Configruation


I have a Polycom Trio 8800 on This is an audio only Trio, no camera is currently connected.


The Polycom Trio is in Skype for Business mode and i am adding a secondary line for Zoom. I have imported the Zoom-Unregistered-L2.CFG config as outlined here:


The config imports successfully and the icon appears on the screen. When i tap the Zoom icon it shows, which quickly changes to just meeting, i then get a busy tone and the call hangs up.


I have increased logging on the phone and i can see the original INVITE going from the Trio to I then see a 180 RINGING i then see a 480 Temporarily Unavailable


We have successfully setup BlueJeans in the same fashion and this works as expected. The call dials out and i get prompted to enter a meeting ID.


Has anyone else encountered any issues setting these devices up with Zoom?


Kind Regards,


Message 1 of 3
Polycom Employee & Community Manager

Re: Polycom Trio and Zoom Configruation

Hello @Trueman1991 ,


Welcome to the Poly Community.

Create a config file with this content:


<web reg.x.offerDummyVideoMLine="1"/>



Were the x represents the line assigned to Zoom. Aka for line 2:



<web reg.2.offerDummyVideoMLine="1"/>



And import it via the Web Interface.


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 Poly 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 2 of 3

Re: Polycom Trio and Zoom Configruation

Thanks - this has got it working

Message 3 of 3