I have 2 call manager with inter-cluster trunk, Call Manager A 6.1 y B 4.1(3), from call manager A is working with IPCC 6.0 the call manager A has configure a CTI Route point for the Contac Center with the extension 2000, the thing is that we need this configuration: “when someone call the call manager B 4.1(3) which has a Unity 4.0 for auto attendant and press 0 send that call to the CTI Route Point number (2000).
First of all when you dial the 2000 number from any phone in the call manager B works fine, because they’re inter-cluster trunk.
I made this configuration: in the unity call manager B I created subscriber with the extension 8180, after that I created a CTI ROUTE POINT in the call manager B with the same directory number and forward all to the extension 2000 but doesn’t work the, but I change the extension 2000 and put any extension from the call manager A and works fine.
The only difference between the extension 2000 and any extension form the call manager A is that the 2000 is a CTI ROUTE POINT. Other thing the CTI are using G711 and the trunk is G729 but with the extension that I made the test was in the same region G711 and works fine.