Instruction manual

Direct Group Calling (DGC)
Direct Group Calling (DGC)
Description
Direct Group Calling (DGC) allows incoming calls to be directed to a specific group of
telephones.
Up to 32 DGC groups, each including up to 20 members, may be set up. Each
DGC group can have its own individual (unique) announcement. A terminal can be in only
one DGC group. Incoming calls on particular trunks can be directed to a DGC group. These
trunks can also be used for outgoing calls.
DGC groups can be administered as Coverage Groups receivers. Refer to the “Coverage,
Group” feature description for details.
Calls to a DGC group hunt in a circular manner, starting at the terminal following the last one
to receive ringing (whether answered or not), and will ring at the next idle terminal in the
group. On multiline voice terminals the calls arrive on a SYSTEM ACCESS button (LOOP
button on a Switched Loop Attendant Console).
If all group members are busy (off-hook), an outside call is queued and the caller receives
ringback tone.
If the DGC has a delay announcement, it is played after a specified amount of
time (up to 255 seconds). The caller is subsequently put on hold (in queue) and will receive
Music-On-Hold if available. If the system is not equipped with a delay announcement, the
call will begin to ring at all line appearances after the specified interval.
An inside caller dials a DGC access code to reach a DGC group. If all members of the group
are busy, the call will go into a queue if Callback Queuing is activated either automatically or
manually, otherwise, the call will not queue and the caller will receive Busy Tone.
Once the call begins to ring at a group member’s station, it will not receive announcement
service or ring at a line appearance.
For this reason, it is important that DGC members log
out (as described below) when they will be away from their desks.
The attendant can camp-on multiple outside (trunk) calls when all members of the group are
busy. Group members do not receive camp-on indication. The camped-on calls will be
queued, and are eligible for the DGC delay announcement. If no delay announcement is
available, the calls will return to the attendant console after a specified number of rings.
DGC group members may withdraw from the group (log out) by going off-hook and dialing
✶ 4. To reenter the group (log in), the member goes off-hook and dials ✶ 6.
An off-hook multiline terminal or attendant console (even if busy on only one SYSTEM
ACCESS or LOOP button) appears busy to DGC calls. However, terminals other than the
SLAC may receive other (non-DGC) calls while active on a DGC call.
Direct Group Calling groups may be used for data applications to access host ports and the
STARLAN Interface CP. The System Administrator may disable queuing for data DGC
groups, if desired. Delay announcements and music-on-hold are not provided for data
groups.
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