That was a good answer you got in the VM forum. Comdial systems send a 9. That is why when setting up VM for a Comdial system, digit 9 in the routing box must always be the same as the routing box number, at least on the initial routing box, or routing box being translated to in the trans.txt file. Setting all routing boxes up like this has just become a habit, kinda like making *=9998 and #=9992.