Off-Hook Signaling For Intercom Calls; Off-Premise Extensions / On-Premise Slt Extensions; Ringing For Incoming Calls - NEC DS1000 Product Description

Section 3: Features

Off-Premise Extensions / On-Premise SLT Extensions

82 N Section 3: Features
G While on a handset call, a flashing green Ring/Message lamp, line/loop key, and muted
Off-Hook Ringing. (While Off-Hook Ringing is occurring, use VOL
the volume of ringing.) This is the default setting.
OR
G While on a handset or Handsfree call, a flashing green line/loop key and Camp-On tones.
Single line telephone users cannot receive Off-Hook Ringing.

Off-Hook Signaling for Intercom Calls

While an extension user is on a handset call, they can receive Camp-On tones in the telephone
handset from a co-worker that called them and dialed 2 to Camp-On. Turn to Call Waiting / Camp-
On on page 38 for more on how to set this up. Off-Hook Ringing for Intercom calls is not available.
User Programmable Feature: # O H S
Sets up the Off-Hook Signaling options for an extension.
Connect analog devices
such as single line
telephones, fax machines
and voice mail systems to the
system.
In DS2000, off-premise SLTs can connect to 2-OPX Modules. On-premise SLTs can connect to
2-OPX Modules or ASTU PCBs. In DS1000, off-premise SLTs can connect to 2-OPX Modules.
On-premise SLTs connect to dedicated analog ports in the main equipment cabinet.
DS2000 ASTU PCBs are available in two models, providing 4 and 8 ports, respectively. Each
ASTU port provides power and ring voltage for the connected SLT. ASTU PCBs use system DTMF
receivers. The CPU provides 10 DTMF receivers that are shared by all devices connected to ASTU
ports. Both DS1000 and DS2000 support FSK Message Waiting lamps. The current version of
DS2000 ASTU PCBs also provide support for high voltage Message Waiting lamps – while
DS1000 does not.
Each 2-OPX Module provides two OPX ports. The first (primary) 2-OPX extension number is the
same as the port's extension number. The second (secondary) 2-OPX extension number is set up in
programming. In addition, the 2-OPX Module has its own DTMF receivers (one for each port), inter-
nal ring generator, and power supply to provide the connected SLT with power and ring voltage. The
2-OPX Module does not provide the signaling required to light SLT Message Waiting lamps.

Ringing For Incoming Calls

On- and Off-Premise single line extensions can ring directly for the following types of calls:
G Direct Inward Line (page 51)
G Intercom (page 72)
G Group Ring (page 66)
G Ringdown Extension (page 94)
Transfer (page 114)
G
Availability: All versions.
The system is compatible with 500 type (dial pulse) and 2500
type (DTMF) analog telephone devices. This includes telco OPX
circuits, on-premise single line telephones (SLTs), fax machines,
modems and Voice Mail ports.
DS1000/2000 Product Description
L M
and VOL to adjust