I have a hot line 888-XXX-XXXX goes direct to a did within location (7788) if this line is not answered they need the phone to go to a menu with 2 option. option 1 press 1 to leave a voice mail option 2 press 2 to be routed to another 888-XXX-XXXX number.Can isimple build within voice mail? if so where can i locate info or get a step by step. Thanks