I just migrate an existing working Voice system from a 2851 router to a 2801 router with almost the same config (just the name of the port that where different).
So I copy the config from the old router to the new one, did the same with the Backup/restore process for messages and prompts and config from the CUE GUI.
But now on the new router, running moslty fine, I can make calls between phones and to external number. But when a caller from the outside calls, he does not here the Auto-Attendant and cannot reach internal phones. Also, the users are not able to get to theire voicemail, and we cannot leave messages, because we get a busy signal when trying to get to voicemail system from the phones.
So I also attach my config files in case they are nedded.
Thank you for your help.