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Polycom VVX 400 + VVX Color Expansion Module

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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


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