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VS-900 Architects and Engineering Specifications v1.0
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receiving station is also registered for a Call Forwarding-related function, calls shall not be
forwarded from that receiving station.
3.14.4 OUTSIDE TELEPHONE LINE CALL FORWARDING
The Outside Telephone Line Call Forwarding function shall automatically route all incoming calls
to a pre-programmed outside telephone line telephone number for each individual Master Station
or Telephone Master Station. All outside telephone line telephones calls shall directly call the
original station without interference from the call forwarding function.
3.14.5 TIME-BASED OUTSIDE TELEPHONE LINE CALL FORWARDING
The Time-Based Outside Telephone Line Call Forwarding function shall automatically route all
incoming calls to an outside telephone line telephone number for each individual Master Station
or Telephone Master Station during a pre-programmed interval within a twenty four hour time
period. The forwarding interval (start and end times) shall be registered in system programming.
All outside telephone line telephones can directly call the original station without interference from
the call forwarding function.
3.14.6 NO-ANSWER CALL FORWARDING
The No-Answer Call Forwarding function shall automatically reroute calls to a Master Station or
Telephone Master Station to a designated receiving station if the called party does not respond
within a preset period of time, programmable from one to ninety-nine seconds in one second
intervals. When several calls are simultaneously made to the original station, the original station
shall begin its time count upon receiving the first call and then forward all waiting stations when
the set interval time elapses. The designated receiving station can directly call the original station
without interference from the No-Answer Call Forwarding function. When the designated
receiving station is also registered for No-Answer Call Forwarding, the call shall be further
rerouted to the second station. When the designated receiving station is busy, the original station
continues to be called. The No-Answer Call Forwarding function shall be disabled when the
designated receiving station has already been registered for Call Forwarding. The No-Answer
Call Forwarding function does not interfere with a Sub-station call to a designated Group. Call
representative station that is registered for No-Answer Call Forwarding. (The group call
designation shall be given priority.)
3.14.7 BUSY CALL FORWARDING
The Busy Call Forwarding function shall automatically route calls to a busy Master Station or
Telephone Master Station to a designated Master Station or Telephone Master Station. The Busy
Call Forwarding function shall not interfere with a Sub-station call to a Group Call representative
station that is registered for Busy Call Forwarding.
3.15 SCAN MONITOR
The Scan Monitor function shall allow any Master Station to automatically scan a designated
group of up to sixteen Sub-stations for listen-only audio monitoring of each Sub-station. System
programming shall allow a monitor interval time of one to ninety-nine seconds in one second
intervals with a different interval time for each Master Station. The number or name of the Sub-
station being monitored shall be displayed on the Master Station. The Scan Monitor function shall
be available via hands-free or Master Station handset. It shall be possible to pause and restart
the Scan Monitor function at any station within the group and advance or reverse monitoring by
one Sub-station intervals. No audio shall be transmitted from the Master Station to the Sub-
stations being monitored unless the Master Station's [PTT] key is pressed. When the Sub-station
to be monitored is busy, the busy indication shall be displayed together with a busy tone at the
Master Station. Incoming calls to the Master Station in the process of scanning Sub-stations shall
be indicated on the calling party display.