Specifications
IM166-107 Descriotion Of System Features
Ringing
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continued
Ring, No-Answer (RNA)
Forwarding Of Transferred Calls
Software release 14A enhances the existing automatic
RNA call forwarding feature to include forwarding of
transferred lines to individual stations. When a
telephone user transfers a line to a station, the call will
ring at the station receiving the transfer for the
programmed number of rings. After that, the call will
start ringing at the station that is hunt-linked to the
station first receiving the transfer. If that station is also
hunt-linked to another station, the call will follow that
link. When the transfer recall time expires, the call will
recall back to the station that initiated the transfer. The
hunt link can be a circular one. The transferred line
will circle the hunt link until it recalls. Alternately, the
station can be hunt-linked to voice mail so that a
transferred call will forward to the station’s voice mail
box if it is unanswered. For this feature to work
properly, the following details must be considered:
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you must hunt-link the station receiving a transfer to
another station;
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you must program the number of rings to occur
before forwarding;
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you must insure that the transfer recall time is larger
than the total time of RNA to all hunt linked stations (if
it is not, the transferred call will recall before the call
gets to the end of the hunt link).
For an example of this last consideration, assume
station 12 is hunt-linked to station 13 which is also
hunt-linked to station 14. Further assume that station
12 and 13 have their RNA’s set to two rings. A call that
is transferred to station 12 will ring there twice, then it
will ring at station 13 twice, then it will ring station
14
until transfer recall time expires. Each transfer ring
cycle is approximately four seconds; therefore, the line
will ring the station for approximately eight seconds
before it moves to the next station. Since there are
three stations linked together, this event will require 24
seconds. This means that you should set the transfer
recall time for 25 seconds or higher.
You can use this formula to determine minimum
transfer recall time.
If:
4 = transfer ring cycle time in seconds
R
= how many RNA rings assigned per station
S = how many stations are in hunt list
Then:
4 x
R
x S = minimum transfer recall time
2-20A
Ringing Features
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continued on next page. . .
(TAB117pll)