Instruction manual

Features and Services
Conference Drop
Description
This feature allows a voice terminal user, except for the attendant at a Switched Loop Attendant
Console (SLAC), to selectively drop a previously added party from a conference call. At a SLAC, the
attendant can drop conferees only before they have been added to conference.
Multiline Voice Terminals (except SLAC):
On a multiline voice terminal, pressing the DROP button and then pressing the button appearance
of a conference party drops that party from the conference.
If a station called for a conference does not answer, the conferencing user should drop the call by
pressing and releasing the switchhook before returning to the conference. Otherwise, the ringing line
will be added to the conference.
Switched Loop Attendant Consoles:
Once a conference has been set up and all the parties can talk to each other, the SLAC attendant
cannot selectively drop a conferee. Individual members of the conference wishing to drop out must
hang up. However, while still setting up a conference, the attendant can drop calls before they have
been conferenced in, as follows:
● A call to an inside party rings unanswered or returns busy tone—hang up.
● A call to an outside party rings unanswered or returns busy tone—press another LOOP
button or RELEASE or FORCED RELEASE.
● A call to an inside or outside party is completed but the person cannot participate—press
another LOOP button or RELEASE or FORCED RELEASE.
It is good operating practice to wait for the called party to answer before adding the party to a
conference.
All Multiline Terminals:
If all System 25 stations hang up on a conference with two outside lines, the outside parties will
remain conference (until one of them hangs up) if at least one is an inbound call on a ground start,
tie, or DID trunk or an inbound call on a loop start trunk if loop start trunk-to-trunk transfer is allowed
by System Administration. If not, the call will be terminated when the last inside user disconnects
from the conference.
Single-Line Voice Terminals:
A single-line terminal user, after having established a three-party conference, can drop the second
party and retain the first party by pressing the switchhook.
2-106
November 1995