IP-Voice: I want to setup a different codec on my Voice interface, but the interface doesn't allow it

Question:  I'm trying to change the codec on my Voice 2 interface, the server unit will not allow the change, what is wrong?  I chose a codec on the client Interface but the server still shows that a different codec is configured. 

Answer:  The codec can only be selected on a client Voice unit, not on the server.  The codec configured on the server is not relevant. The client chooses the codec when it connects to the server. The statistics tab in the Interface will show the codec really used in the connection.