I am not clear on the steps required to use the existing dial plan on a new 2013 server as I have built a new Ex2013 server to migrate my Ex2010 users to. I understand the steps to be:
- move the appropriate system mailbox to the new server - Done
- Import dial plan and auto attendant custom prompts
If we really just want to use the existing dial plan, do we need to do anything here? Can we use the existing dial plan?
I assumed that the existing dial plan would work as is for both the 2010 and 2013 server, but when I try to access a mailbox on the new server, I get a busy when trying dial the mailbox directly and if I call the access number I get a message saying, "Sorry you have a mailbox that is not supported by this unified messaging server."
Do I need to convert, export, import, or create a new dial plan for the new 2013 server? I am planning to move all mailboxes at once, but I would like some confirmation that the new server can receive voicemail before I make the switch.