I use asterisk and not a T/A and it's been working without fail. The problem I'm having is I keep getting voicemails from a telemarketer, "SECURITY OT " 7016611006, in my VOIPO VM box. All calls should fail over to my asterisk VM, the only time they go to VOIPO VM is when asterisk is unreachable. At first I thought I was dropping registration but after monitoring asterisks and placing random inbound test call throughout the day I have no issue. Now I'm thinking the telemarketer is going straight to VM without ringing the line.

My question is has anyone with T/A gotten a VM from that number and if so did your line ring or did a VM just appear?

Thanks
Chris