Hi everyone,I have a customer running CME version 12 and only one Cisco Phone 7841 can't make external calls. Any other voice register DN using the same phone model works fine for internal and external.I collected the output of "debug ccsip all" and ...

Hello everyone We have a problem with the phones model 3905 from a remote site of our end customer. When the WAN link of this site is unavailable, phones register without problems at the local voice gateway (a ISR model 2901). The problem occurs when...

We're deploying the Mobile Remote Access via Cisco Expressway solution using the Expressway-E and Expressway-C in a VM environment on version X8.1.1.and I feel we're almost good to go. The traversal zones (using IP addresses) are active in both the E...