SMDI messages are used by the SMDI message server to generate either
E-mail notifications of received messages which are forwarded to a user
of the VMS or to supply VMS message status information to a voice message
retrieval and forwarding system using IP messaging instead of SMDI FSK or
PSK signaling. SMDI messages between a stored program controlled
switching system, e.g., C.O. switch, and a voice message system are
monitored by the SMDI message server of the present invention, e.g., by
inserting a Tee into the SMDI link between the C.O. switch and VMS. The
SMDI message server uses the directory number information and/or a
message line identifier included in a received SMDI message to identify a
subscriber or voice message retrieval and forwarding system which should
be notified of the received SMDI message information.