I have a requirement where I have to connect the Polycom HDX ceiling microphone to Cisco SX80. To make the connection, I need a converter to convert RJ45 to Euroblock to connect it to SX80. Will it work directly. Has some one tried it before. I did see in some supportforums threads that connecting polycom ceiling microphone to Cisco codec will work. But no details on whether a simple converter is good enough.