Zoom Room - Crestron Device as SIP Phone

[twisted1]

Our client uses Zoom Rooms which have a Crestron Device as their speaker phone. That device supports SIP Integration to our PBX for making and receiving calls.

I have been able to successfully enter the information required to connect that device to our 3CX Instance. When I first did it, I thought all was working great as I was able to make calls from this device and receive calls as well. When I tried the same with a new extension I found that I could make calls fine but was not able to answer them. Calls rung to that extension went straight to voicemail. It was then I realized the difference between the two extensions. The first had a physical phone attached to it where as the second did not. It would appear that when there is not a real phone (physical or PC soft phone) registered and active, 3CX does not realize there is anything listening and re-routes to Voicemail.

How can I "let 3CX know" that I do indeed have a device attached so it will send the call out? Or am I WAY off based and the issue is something else entirely?

Thanks!

Scott

 

[samlouis55]

Your issue is something else. I have 5 creston devices at my office and they register normally to 3CX. Incoming and outgoing calls are fine. Just create the extensions in 3CX and put username/password/server in configuration settings of crestron.

 

[twisted1]

Your issue is something else. I have 5 creston devices at my office and they register normally to 3CX. Incoming and outgoing calls are fine. Just create the extensions in 3CX and put username/password/server in configuration settings of crestron.

Damn. I did that. Have recreated the same issue on two 3cx installs and two different creston devices... so few settings to add, I am not sure what to look at. As soon as I answer, the call drops when no other device is attached to that extension.