Hi folks, new forum user here. Previously had a 7200/7100 configured for SPNET and extension dialing between remote systems working fine for years. Recently had to switch the 7100 to a 7200 for more space and redo the programming. Now SPNET is not working between locations. I have tried my best to get all the settings correct, however when I attempt to dial a remote extension I get Invalid Number displayed.

Is there a specific setup manual for SPNET outside of the normal administrator guide that is available online? The setup is private IP over VPN and the tunnel is good as I can ping and connect to the remote 7200 with device manager. I'm pretty new to phone system programming as well so please be kind.