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DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506
Issue 1
April 2000
Features and technical reference
1563Trunk Flash
20
If the trunk group is a DS1 trunk in Italy, the Trunk Flash feature applies only to
outgoing calls.
If the trunk is not directly connected to the far end or CO providing the
customized services, use of the Trunk Flash signal may cause the call to be
disconnected by the far end or CO.
Calls made after the Flash are not recorded in Call Detail Recording (CDR)
records.
Considerations
NOTE:
The Trunk Flash feature allows the telephone user to receive central office
dial tone, and place a call that is not monitored by the DEFINITY system,
and is not subject to restrictions (toll, FRL, COR, etc.). Therefore you
should enable this feature with caution.
■ A Trunk Flash button can be assigned on CAS attendant consoles,
non-CAS attendant consoles, and multifunction telephones. For CAS
attendants, use of this button is limited to certain CAS features via RLT
trunks. For multifunction and non-CAS attendant consoles, this button is
used for the Trunk Flash feature.
■ FAC activation of the trunk flash feature is allowed.
■ The Flash button is used by the Trunk Flash and CAS features.
■ System features (such as internal conference call, transfer, and call park)
may be combined with custom services (that is, CO-based features that are
activated/controlled by sending a flash signal over the trunk to the CO).
However, mixing DEFINITY ECS features with custom services causes
complications for the user when tracking a call. DEFINITY Systems
cannot give the local telephone user status information on the custom
services.
■ The Trunk Flash feature may only be accessed if the call has only one
trunk, the trunk must be outgoing from the PBX’s perspective, and the
trunk group of that trunk has Trunk Flash enabled. The Trunk Flash feature
is disabled when the call involves more than one trunk, even if all the
trunks have Trunk Flash enabled.
■ Any DEFINITY ECS telephone can flash and dial a FAC to access the
Trunk Flash feature; any DEFINITY ECS telephone with a flash button can
access the Trunk Flash feature by hitting the flash button. The system
allows as many as five telephones to participate in a conference call with
the trunk line party. However, to access the Trunk Flash feature, at least one
of the telephones must have a Flash button.