[Asterisk-Users] how to make messages button on ip500 work

[PCSUPPORT PC SUPPORT]

What are the configuration steps to set up the polycom ip500 to where by pressing on the messages button will activate voice mail? I suspect the xlm language will need to be changed but where.

Also, have one main pstn line going in from main telco with cw call notification. Every time a second call comes in hear the call notification but no way to switch to the second call. Is there a way to put that call on the second line?