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Polycom VVX 400 + VVX Color Expansion Module

Occasional Visitor

Polycom VVX 400 + VVX Color Expansion Module

I am using a Polycom VVX400 and am trying to connect the VVX Color Expansion Module to it, however the expansion module never seems to come on at all.


When I plug in the module, I see the lights come on briefly, but the screen never seems to light up at all. Does anyone happen to know a reason why this would be happening? Is this module incompatible with the VVX 400, or did I potentially receive a defective expansion module?


Thanks for any and all help!

Message 1 of 2
Polycom Employee & Community Manager

Re: Polycom VVX 400 + VVX Color Expansion Module

Hello AMatisko,

welcome to the Polycom Community.

The community's VoIP => FAQ <= contains this post here:


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

Resolution: Please check => here <=


Did you verify you are running UCS 4.1.6 ?

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