Just purchased a Polycom IP7000 conference phone. I have the phone registered and is working great except the conference key. When I call party A number from the Polycom and Party A answers I then press the conference key. I get dial tone and call party B. Party B answers and I press the conference key nothing happens. It does not join the calls. Call waiting swap is enabled in COS.
I have a Mitel 3300 MXe controller running release level 6.0 SP3.