Hi, The call forwarding for SIP phones is not working, if we forward the calls from one of the extensions to external number and we call the Direct Number (MSN) we get “The call cannot be completed” and from the debug we get this cause “Unallocated/u...

Hello Everyone, I am trying to configure a CME. Everything works fine, but I got a requirement. The requirement is that a pin code must be entered for outgoing calls in just one phone extension. All calls in the rest of phones must be free with no pi...

Hi, I’m new to the collaboration field and they assigned to me a task to migrate old voice gateway to a new isr 4431 router. so they purchased 2 modules NIM-1MFT-T1/E. I’m confused since this is 1 port module, can the following configuration work wit...

Customer needs to migrate from 2951 to isr4431 voice gateway with same configuration.  Please let me know the best practice to migrate the voice gateway and what changes that needs to be made. 

Hi Everyone, I'm planning to migrate CME router "2911" to new ISR "4351". The Plan is to migrate the existing CME and CUC to the new router but I've noticed that there is a few changes for Exp. Clock sync, and the the int BRI is not there so the inco...