Alcatel Unleashed

DOes anybody knows about this protocol of Nortel? They have claimed to me that they are able to use ABC Protocol in order to interconnect our PBX's, i haven't tell them but i don't think this is possible. Correct me please if i'm wrong and Nortel found how to duplicate ABC.

Never mind, talked to another tech and said that what the other ment was ABCD signaling. :S a D was missing.