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Polycom IP 7000 Cannot hear audio from callers but they can hear us

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Occasional Visitor

Polycom IP 7000 Cannot hear audio from callers but they can hear us

I recently provisioned an Polycom IP 7000. It registers fine, can dial in and out but cannot hear audio from other party even though they can hear us.

 

I have attached the log export from the Polycom and I believe it has something to do with the following line:

 

0509150136|net  |4|03|rtosNetwork: netwTask() - Can't find associated CCB.

 

I just cannot find anything that relates to my issue when searching for it. This is not used with Lync or Skype.

1 ACCEPTED SOLUTION

Accepted Solutions
Occasional Visitor

Re: Polycom IP 7000 Cannot hear audio from callers but they can hear us

Steffen,

 

Thanks for the reply but as soon as I saw this we resolved the issue.

 

Apparently, Polycoms by default filter by IP Address which caused the packets to be dropped.

 

Disabled the following:

Settings>Network>RTP, Filter by IP Address = Disable

View solution in original post

Message 3 of 3
2 REPLIES 2
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Polycom Employee & Community Manager

Re: Polycom IP 7000 Cannot hear audio from callers but they can hear us

Hello DaKing,

welcome to the Polycom Community.

It is always useful to include the currently used SIP or UC Software version as issues experienced or a question asked may already be addressed in a newer release.

This also allows yourself and others to check against current software release notes, Administrator Guides or FAQ post’s.

The above is also stated in the "Read First"

Therefore the Polycom VoIP FAQ contains this post here:

Question: How can I find out my SIP or UC Software Version of my Phone?
Resolution: Please check here

 

In addition:

 

Jan 21, 2014 Question: What Ports / Protocols are being used / need to be open in a Firewall?

Resolution: Please check => here <=

 

and

 

Jan 19, 2012 Question: How to troubleshoot Polycom VoIP related Issues?

Resolution: Please check => here <=


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 3
Occasional Visitor

Re: Polycom IP 7000 Cannot hear audio from callers but they can hear us

Steffen,

 

Thanks for the reply but as soon as I saw this we resolved the issue.

 

Apparently, Polycoms by default filter by IP Address which caused the packets to be dropped.

 

Disabled the following:

Settings>Network>RTP, Filter by IP Address = Disable

View solution in original post

Message 3 of 3