NEC DS1000 Product Description page 119

Section 3: Features
Table 7: Trunk Timers
Option Description
Minimum Ring Detection
Use this timer to set the threshold for ring detection. If the ring
Timer
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.
Be sure the value you enter is compatible with the local telco. If
you set this value too short, the system may detect line spikes
and anomalies as ringing. If too long, the system may not prop-
erly interpret a valid ringing signal.
DP Make Timer
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. Set
this timer for compatibility with the connected telco or PBX/
Centrex. Keep in mind that there are three components of a Dial
Pulse digit: Make interval, Break interval and Interdigit interval.
An improper setting may cause misdialing.
DP Break Timer
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. Set
3
this timer for compatibility with the connected telco or PBX/
Centrex. Keep in mind that there are three components of a Dial
Pulse digit: Make interval, Break interval and Interdigit interval.
An improper setting may cause misdialing.
DP Interdigit Timer Use this timer to set the duration of the Dial Pulse Interdigit sig-
nal (i.e., relay open time between each digit). Set this timer for
compatibility with the connected telco or PBX/Centrex. Keep in
mind that there are three components of a Dial Pulse digit: Make
interval, Break interval and Interdigit interval. An improper set-
ting may cause misdialing.
Manual DTMF Tone On 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.
Set this timer for compatibility with the connected telco or PBX/
Centrex. If you set this interval too short, the telco or PBX/Cen-
trex may not be able to properly detect the DTMF digit. If too
long, outbound dialing is unnecessarily slowed down.
Manual DTMF Tone Off
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.
Note that this is the minimum DTMF Tone off time guaranteed
by the system.
Set this timer for compatibility with the connected telco or PBX/
Centrex. If you set this interval too short, the telco or PBX/Cen-
trex may not be able to set up to receive the next DTMF digit. If
too long, outbound dialing is unnecessarily slowed down.
Section 3: Features N 109
DS1000/2000 Product Description