Both Mark and DTMF are right!

The DSU II on Software 3A and above can do a ring all in a department group.

And you will have to create a mailbox for the number you assigned as the pilot number for the department. In the mailbox set the transfer to blind.

Also set the ringback tone on transfer on in system programming on the DSU II and the Comdial will finaly sound like a real phone system.


DJ