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Polycom CX600 and mute button

Occasional Visitor

Polycom CX600 and mute button

I have two CX600s that are used in conference rooms.  They place the phone on speakerphone and then mute the mic until they need to speak.  If the phone is on mute for more than 10 minutes they can not unmute the phone and have to hang up and call back into the conference call.  We have been able to replicate this issue in our office.  This only happens on speaker phone not when the handset is put on mute.  Has anyone else had this problem and is Polycome going to fix it?

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Polycom Employee & Community Manager

Re: Polycom CX600 and mute button

Hello loaking,

Polycom and other manufacturers produce these optimized for Microsoft® Lync® devices after a reference design and the embedded OS running on the phones is provided, supported and maintained by our partner Microsoft®.

You therefore may want to reach out to the Microsoft® support directly instead as this is the most direct and efficient path.


Neither Polycom or any other Manufacturer of these optimized for LYNC phones maintains any software and the Software support is provided by our partner Microsoft.

Best Regards

Steffen Baier

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
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