System Timers, Trunks - NEC DS1000 Product Description

System Timers, Trunks

DS1000/2000 Product Description
Customize critical trunk
timers for compatibility with
the connected telco or PBX/
Centrex.
Option
Line Response
Dial Tone Detect
PBX/Centrex Flash
Force Idle (Trunk Guard
Time)
Minimum Ring Detection
Timer
DP Make Timer
DP Break Timer
DP Interdigit Timer
Manual DTMF Tone On
Manual DTMF Tone Off
Speed Dial DTMF Tone
On
Speed Dial DTMF Tone
Off
Loop Current Detection
Time
Section 3: Features
Availability: All versions.
The system provides many trunk timers that the administrator
can customize. Review the table below for a description of each
trunk timer.
Table 8: Trunk Timers
Description
When the system fails to detect loop current on a trunk, it will
wait this interval before marking the trunk as defective.
When the system seizes a line to place a Speed Dial call, it waits
this interval for dial tone before outdialing the call.
Use this timer to set the Flash interval. When a user flashes a
trunk, the system opens the trunk circuit for this interval.
Use this timer to set the guard time for trunks. When the system
disconnects a trunk (e.g., after a user hang up), the system keeps
the line idle until this timer expires. The Trunk Guard Time helps
prevent call collisions.
Use this timer to set the threshold for ring detection. If the ring
signal is longer than this interval, the system interprets the signal
as valid ringing. If the signal is equal to or shorter than this inter-
val, the system ignores the ringing.
Use this timer to set the duration of the Dial Pulse Make signal
(i.e., relay closed). This is the "on" time in a Dial Pulse digit.
Use this timer to set the duration of the Dial Pulse Break signal
(i.e., relay open). This is the "off" time in a Dial Pulse digit.
Use this timer to set the duration of the Dial Pulse Interdigit sig-
nal (i.e., time between digits).
This timer sets the duration of DTMF digits for trunk calls man-
ually dialed by an extension user. This is required because the
system buffers the digits the user dials.
This timer sets the duration of the interval between DTMF digits
for trunk calls manually dialed by an extension user. This is
required because the system buffers the digits the user dials.
This timer sets the duration of DTMF digits for Speed Dial trunk
calls automatically dialed by the system.
This timer sets the duration of the quiet time between DTMF dig-
its for Speed Dial trunk calls automatically dialed by the system.
For loop start trunks, loop current must be present for this inter-
val before the system seizes the trunk.
Section 3: Features
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