Program 15 Overview; Code 0: Automatic Release (Ar) On Voice Mail Or Voice Calls; Code 1: Exchange Outgoing Signal; Code 2: Line Pulse (Dp) Rate - Toshiba Strata DK40 Programming Manual

Program 15 Assigning Exchange Line Attributes

Program 15 Overview

This program specifies operational options on a line by line basis.

Code 0: Automatic Release (AR) on Voice Mail or Voice Calls

On loop start Exchange lines, some Exchanges send the AR (Automatic Release) or CPC
(Calling party Control) signal after an external party hangs up (typically 1~15 seconds) to
disconnect a loop start line. An AR/CPC signal is a 95 or 450-millisecond open of the
Exchange line loop. If the Exchange sends this signal after an external party hangs up and
before the VM/auto attendant transfers a call, D tone will be sent to the voice mail port
(Program 30, LED
on all voice calls.
When a station is disconnected from an Exchange line call by the AR/CPC signal, its LCD
will display "CO LINE HANG UP". The line can be disconnected anytime by the AR/CPC
signal during the "talk state" of a call. Exchange line calls disconnected by the AR/CPC
signal will be represented on the SMDR report by a "
The Voice Mail device must recognise the "D" tone as a disconnect signal.
Important! This option cannot always be used because some Exchange lines may send

Code 1: Exchange Outgoing Signal

Each line can be independently assigned to have either Dial Pulse (DP) or Dual-tone Multi-
frequency (DTMF) signalling on outgoing calls toward the local exchange.

Code 2: Line Pulse (DP) Rate

If a line is assigned DP signalling, the rate can be either 20 or 10 pulses per second (PPS).
Some local exchange do not reliably accept 20 PPS.

Code 3: Automatic Release (AR) From Hold/Transfer

The Automatic Release (AR) signal sometimes called Calling Party Control (CPC) or
Supervised Loop Control. This signal consists of a momentary open of the loop start
Exchange line provided by some Exchanges—the duration of the open depends on the
Exchange. If an Exchange line is programmed (Programs 15-0 and 15-3) to detect the AR/
CPC signal, the DK40 system drops the line when the Exchange sends the signal (typically
1~15 seconds after the outside party hangs up). The system sends D Tone to voice mail ports
to drop the ports when AR/CPC is detected.
The Strata DK40 system disconnects a loop start Exchange line voice call and displays "CO
LINE HANG UP" on the station's LCD anytime the AR/CPC signal is detected and the
Exchange line has Programs 15-0 and 15-3 enabled.
Strata DK40 Programming Manual Spring 1999
15), releasing and clearing that port for another call. This feature is active
unreliable AR/CPC signalling or no AR/CPC signalling for loop start lines.
Enable AR/CPC-Hold detect on loop start lines only after testing that the
Exchange sends the AR/CPC-Hold signal.
The AR or CPC is sometimes referred to as the Disconnect Timer/Disconnect
Clear or the k break relay.
If a line is set for DP operation, the 7RQH 'LDO 6HOHFW button must be
programmed on stations that must send DTMF tones over the lines.
" next to the Exchange line number.
*
System & Station
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