CX600 Automatically Places Outbound Call on Hold


CX600 Automatically Places Outbound Call on Hold

User experiencing weird issue with outbound calls being initiated from CX600. When user calls any number and customer answers the CX600 immediatley places call on hold.


We un-teathered the CX600 from PC confirmed calls were still placed on hold. After rebooting phone the calls started working correctly. Really don't like the answer reboot phone, has anyone experienced this issue?


The phone is at the latest firmware update 4.0.7577.4455


Thanks for help!

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Polycom Employee & Community Manager

Re: CX600 Automatically Places Outbound Call on Hold

Hello JRFoster,

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® community and / or Microsoft® support directly instead as this is the most direct and efficient path.

Please try here  or raise this via Microsoft Support.


Best Regards

Steffen Baier


If official support is required please check how to phone or open a case here

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.


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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.
Please also ensure you always check the VoIP , Video Endpoint , Microsoft Voice , PSTN or other FAQ's in the different sections
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