I have successfully created a call monitoring solution for customers to be able to dial in, enter a passcode, and monitor an extension (assuming the extension is valid for their login). I accomplish the monitoring with extenspy, and for months this has been working flawlessly. Recently we have begun to install Polycom IP330 phones instead of the Cisco 7940’s we HAVE been using. For some reason extenspy does NOT work with the polycom phones - I get no audio. If I switch phones to a Cisco (leaving the asterisk sip configuration alone), it starts working again.
Any ideas why a Polycom would not work with extenspy?