My FreePBX system is setup to only receive incomming calls and then once a specific extension is selected the call is then forwarded to three phone numbers entered into the “follow me” list using the hunt feature. I am trying to check voice mail messages on the extension from a cell phone by dialing into the inbound number but I can not get it to work or do anything. When I press * (Asterisk Symbol) to access the menu to check voice mail the system just says “you have entered an invalid selection” and starts replaying the main greeting message again. What am I doing wrong? Any help is greatly appreciated.