Panasonic KX-NS500 Features Guide

2.5.4.5 Reverse Circuit
Description
A circuit in the PBX can detect the reverse signal from the telephone company when an extension user tries
to make a trunk call. This detects the start (a called party goes off-hook) and end (the called party goes on-hook)
of an outgoing trunk call. When a trunk call is received, the circuit can also detect the reverse signal after an
outside caller goes on-hook.
If Reverse Circuit Detection is disabled, the total duration of the call is not accurately recognised by the PBX.
The duration of a call can be verified on SMDR using this feature (® 2.22.1.1 Station Message Detail Recording
(SMDR)).
It is possible to select whether the PBX detects the reverse signal for outgoing trunk calls only, or for both
outgoing and incoming trunk calls, or for no trunk calls (detection disabled) through system programming.
PC Programming Manual References
9.24 PBX Configuration—[1-1] Configuration—Slot—Port Property - LCO Port— Reverse Detection
PT Programming Manual References
[415] LCOT Reverse Circuit
Feature Guide 109
2.5.4 Trunk Call Features

Panasonic KX-NS500 Specifications

General

Analog Extensions	Up to 64
VoIP Support	Yes
System Type	Hybrid IP-PBX
Power Supply	AC 100-240V, 50/60Hz
Operating Temperature	0°C to 40°C
Humidity	10% to 90% (non-condensing)
Maximum Extensions	288
IP Extensions	128
VoIP Channels	64
SIP Trunks	64
Networking	Yes, supports networking
Built-in Applications	Call Center
Expandability	Yes, via expansion cards and cabinets
Supported Protocols	SIP, H.323, MGCP
Dimensions	430 x 88 x 367 mm