I have a strange issue in my CUCM 8.5 cluster (one publisher and one suscriber). I try to expain:
We have with ISP a numbering plan to have short numbers in corporative mobiles. For instance, to dial the 666666667 inside the company, it's enough to dial 29654.
When you call from any of these mobiles to any Cisco phone forwarded to any of mobile short number, one digit is dropped. Only in this scenario.
For example, you dial from 29670 to a Cisco phone forwarded to 29654 and the call goes to 9654 dial number.
The network topologhy is the following:
Call from mobile - ISP - Nortel CS1000 with a DSC -Cisco gateway with a dial peer - CUCM - Cisco phone forwarded - Nortel CS1000 - ISP - Mobile called.
If you call to any short mobile number from any phone which isn't forwarded, everything goes well.
I did several traces and the digit dropped it's shown when the call gets back to Nortel CS100 regarding the topologhy described before, so I'm thinking if CUCM uses a different route pattern when a phone is forwarded.
Thanks in advance.