I have a customer that has 5 ip offices. 2 are in the US and 3 in Canada. When they call the one site in Mississauga and they get the VM, they can not dial an ext tells then invalid , when they press pound to dial by name it just sends them back to the menu. If call from a cell any other phone it works. Just upgraded them to 9.0.12. The other sites are PRI and this site is analog lines.