Plantronics + Polycom. Now together as Poly Logo

VVX Color Expansion Module

Occasional Visitor

VVX Color Expansion Module

Adding a vvx color sidecar to vvx 400 the POE on the phone is set to true but when I plug in the sidecar the buttons light up for a second the go out.

Message 1 of 2
Polycom Employee & Community Manager

Re: VVX Color Expansion Module

Hello Bill P,

welcome to the Polycom Community.

It is always useful to include the currently used software version as issues experienced may already be addressed in a newer release or certain features may not work with your currently used software version.

This also allows yourself and others to check against current software release notes.

Therefore the Polycom VoIP FAQ contains this post here:

Question: How can I find out my SIP UC Software Version or the BootROM Version of my Phone?
Resolution: Please check here


the FAQ also contains:


Jan 22, 2014 Question: Which VVX Phones support the new Expansion Modules and what Software Version is required?

Resolution: Please check => here <=

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

Best Regards

Steffen Baier

Polycom Global Services

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. My official "day" Job is 3rd Level support at Poly but I am unable to provide official support via the community.


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 2