What is the status of the ports in CallManager, are they showing they are registered. Did you restart Unity. Are you using anything like Unity failover. Another way you can setup your VM ports is resricting direct access to the voicemail ports and al...

Is the problem that the call is not being forwarded or that you want it to ring the phone. This is configurable with CallWaiting. If this is turned on then the IP phone will ring. If it's turned off, then it will attempt to fowward to the Call FOrwar...

This was successfully tested. If you have any specific questions in terms of setting this up please let us know.

If your phones are all set to 'none' as the soft key template, have you tried assigning it on the Device Pool.

In terms of training there are also training books available that will help you learn these topics.