Avaya CMC1, Maintenance Procedures

Page: 38 / 426

Maintenance strategy
Signaling
38 Maintenance Procedures
December 2003
Conference, Transfer, and Call-Forwarding
Denial
If a station or attendant attempts to connect parties without disconnect supervision together, the outcomes
listed in
Table 9, Attempted connection without disconnect supervision, on page 38 are possible.
Transmission characteristics
The system’s transmission characteristics comply with the American National Standards
Institute/Electronic Industries Association (ANSI/EIA) standard RS-464A (SP-1378A).
Table 9: Attempted connection without disconnect supervision
Attempted activity Possible outcome
Digital station or local
attendant transfer If a digital station attempts to transfer the two parties together, the call-
appearance lamp flutters, indicating a denial. If transferring over a DCS
trunk, the denial may drop the call since the transfer is allowed, and the
other system is queried for disconnect supervision.
Analog station transfer If an analog station attempts to transfer two parties together by going
on-hook, the analog station is no longer on the call and the transfer
cannot be denied.
Centralized Attendant
Service (CAS) transfer If a CAS attempts to transfer two parties together by pressing the
release key, the release link trunk is released and the branch attempts a
transfer by hanging up.
Station
Conference/Dropout If a station conferences every party, the conference is allowed since the
station has disconnect supervision. When the station is dropped from
the call, the call is dropped since the other parties do not have
disconnect supervision.
Station Call Forwarding If a station is call forwarded off-premise to a trunk without disconnect
supervision, the calling party without disconnect supervision is routed
to the attendant.