Altigen AltiServ User Manual page 12

The user who first initiates the conference call can select another
conference member's call and drop it from the conference simply by
disconnecting the call. This must be done through AltiView/AltiAgent. The
feature is unavailable to other conference members, even when the initiator
hangs up. Single Call Waiting or Multiple Call Waiting must be set for
the extension.
To conference an incoming call:
1. User hears call waiting tone.
1. Press FLASH to connect to the incoming call.
2. Press # to add callers to the conference.
Conferencing an incoming call must be done through AltiView/AltiAgent,
if Multiple Call Waiting is set for the extension. If only Single Call
Waiting is set, both AltiView/AltiAgent and the phone itself can be used
to conference an incoming call.
Conference Call Restrictions
There are some system technical restrictions on conference calls.
On each Quantum board, the extensions assigned to the board can be
involved in a maximum of 3 different conferences. For example, if
extensions 101–110 are all on the same board, 101, 105, and 107 could be
involved in one conference call, while 104 and 108 were on another, and
109 and 102 were on a third call.
Depending on the type of board, each Quantum board could run up to 4, 8,
or 12 extensions. There is no limit to conferencing extensions from the
same board.
For all conferences on a single board, the system allows up to 4 extensions
total from any of the other boards, in any combination, at any one time.
For example, if Conference #1 includes 4 extensions from other boards,
Conference #2 and #3 cannot have any. If Conference #1 includes only 2
extensions from other boards, 2 other extensions could be used by
Conference #2 or #3.
If these limits are reached, the system rejects attempts to conference
additional parties to the call.
6 AltiServ User Guide