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CO Line Hunting
Description
CO Line Hunting provides the ability to route calls to a main answering position and provide an overflow
capability so that backup answering stations can be automatically added as necessary. In a busy
condition, an incoming CO line programmed for hunting will ring the first available station. If that station
does not answer, the system will add stations to the ringing sequence, one at a time until the call is either
answered, abandoned or until all stations (up to 16) in the ringing assignment are added to the ringing
sequence.
See also, Flexible Ringing Assignment, page 93 in this document.
Conditions
The CO line must be programmed for hunting to be operative.
Stations will be added to the ringing sequence in the order that they are programmed on the incoming
ringing assignment Modes (Mode 01-[TK]-[station] and Mode 02-[TK]-[station]).
Interactions and Related programming
There is a relationship between Hunt Time Assignment Mode 05-08-01 and the Busy Remind/Camp On
Timer 05-01-05. Note the behavior of the HUNT feature in a busy condition. The system will seek to ring
the first station programmed in Mode 01. If that station is busy, the hunt timer will begin and when it
expires, the next station in Mode 01 will ring. If the second station is busy, the will immediately advance to
the next station.
An example would illustrate the relationship between the two timers.
Station 11 and 12 are programmed to ring in Mode 01.
The HUNT Timer 05-08-01 is set for 15 seconds.
The Busy Remind/Camp On Timers 05-01-05 is set for 4 seconds.
When an incoming call arrives into the system and station 11 is busy, the HUNT timer is activated and the
system will attempt to ring station 11 for a period of 15 seconds. During this time, a camp on indication
both visual and audible will appear at station 11. This gives them the opportunity of placing an existing
call on hold and answering the new call. A repeated camp on indication will appear every 4 seconds. After
15 seconds the call will attempt to ring station 12.
Note:
If the Busy Remind/Camp on parameter is set to 0, station will receive NO indication other than a
blinking CO line that a new call is arriving.
Programming
Day Ringing Assignment, Mode 01-[TK]-[STN] must be programmed for each Trunk in the system. Up to
sixteen stations may be programmed for each line. Lines programmed to hunt will search this Mode in
the order that stations are programmed. The system will ring the first available station in this group. If
that station does not answer the call within the time period specified on Mode 05-08-01, the system will
add the next available station (in the order programmed on Mode 01-[TK]-[station]) to the ringing
sequence. This action will repeat until all available stations are in the ringing sequence, the call is
answered or the call is abandoned. This Mode controls ringing assignments during day service only.
Night Ringing Assignment, Mode 02-[TK]-[STN] must be programmed for each Trunk in the system if
night service is to be used within the system. Up to sixteen stations may be programmed for each line.
Lines programmed to hunt will search this Mode in the order that stations are programmed. The system
will ring the first available station in this group. If that station does not answer the call within the time
period specified on Mode 05-08-01, the system will add the next available station (in the order
programmed on Mode 02-[TK]-[STN]) to the ringing sequence. This action will repeat until all available
stations are in the ringing sequence, the call is answered or the call is abandoned. This Mode controls
ringing assignments during night service only.
Hunt Time Assignment, Mode 05-08-01 sets the interval for adding stations to the ringing sequence in a
no answer condition. Every time a station begins ringing, this timer will begin. If it expires without the call
having been answered, the next available station in the group defined on Mode 01-[TK]-[STN] or Mode
Summary of Contents for G1 8-24
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