Instruction manual

Features
If a single-line telephone with a timed disconnect is used, for example, AT&T
model 2500YMGK or 2500MMGK, pressing the switchhook disconnects the call.
With this type of telephone, the Recall button must be used instead of the
switchhook to add a conference participant or drop the most recently added
conference participant.
Feature Interactions
Account Code A separate account code must be entered for each outside call
Entry added to the conference if account codes are to be used.
Allowed Lists
A user with an outward-restricted telephone cannot add an
outside participant to a conference unless the participant’s
number is on an Allowed List assigned to the telephone. A user
with a toll-restricted telephone cannot dial a toll number to add
a participant unless the participant’s number is on an Allowed
List assigned to the telephone.
Press the Conference button to enter the Flash special
character in a telephone number programmed on an Auto Dial
button. Press the Drop button to enter the Stop special
character in a telephone number programmed on an Auto Dial
button.
Auto Dial
Barge-In
Callback
Calling
Restrictions
Call Waiting
Barge-In can be used to interrupt conference calls; all
participants hear the Barge-In tone. Barge-In, however, does
not connect the user to a conference call if the conference
already has the maximum number of participants. If Barge-In is
used to connect to a conference call that involves an outside
trunk and the person on the outside trunk hangs up, the person
using Barge-In is also dropped.
A queued call cannot be part of a conference. With Automatic
Callback, the call is automatically queued; however, if the user
tries to add the queued call to the conference, the system
returns a busy tone. If a user with Selective Callback tries to
queue a call while setting up a conference, the system returns a
busy tone. The user must press the Drop button and the line
button with the queued call to drop the busy tone from the
conference.
See Allowed Lists and Disallowed Lists in this section.
A Call Waiting tone is only heard by the person receiving the
call and not by other conference participants. If the conference
originator reaches a busy extension, hears the Call Waiting
special ringback, and tries to add the call to the conference, the
system returns a busy tone. The user must press the Drop
button and then press the line button used to call the busy
extension to drop the busy tone from the conference.
98 Conference