Panasonic KX-NS500, Features Manual

Page: 436 / 580

4.3.3 ISDN Virtual Private Network (ISDN-VPN)
Description
ISDN Virtual Private Network (ISDN-VPN) is a service provided by the telephone company. It uses an existing
line as if it were a private line. There is no need to set up a private line or to lease a line from the telephone
company. Making and receiving both public and private calls is possible using the same line.
Public/Private Discrimination:
a.
When making a call: The public/private discrimination number is required before sending the dialled
number to the telephone company. The public/private discrimination number can be dialled manually, or
automatically by ARS programming (
®
2.8.1 Automatic Route Selection (ARS)) and/or TIE line service
programming.
b.
When receiving a call: The telephone company distinguishes the call type. If it is a private call, the call is
received by the TIE line service method. If it is a public call, the call is received by the Incoming Trunk Call
Distribution method (DIL/DDI/MSN) which is assigned on the trunk.
[Example]
Head
Office
Extn. 201 Extn. 202 Extn. 301 Extn. 302
(DDI No.:
01-45-6789)
Extn. 401 Extn. 402
01-23-4567
ISDN-VPN
Public ISDN
Dials "401".
(TIE)
Dials "9-01-23-4567".
(ARS)
Dials
"01-45-6789".
Branch
Office
Public Call
Note:
Private Call
<Public
Discrimination>
9-
0
-01-23-4567
Public No.
<Private
Discrimination>
113
-401
Private No.
PBX-2
Branch
Office
PBX Code 111
PBX Code 112
PBX Code 113
PBX-3 PBX-1
Conditions
•
Each PRI/BRI port can be set to public or VPN through system programming. To use this service, select
VPN.
•
Even if the telephone company does not support the ISDN-VPN service, it is possible to use the same kind
of service when making a call by TIE line service programming, and/or Quick Dialling programming
(
®
2.6.5 Quick Dialling).
436 Feature Guide
4.3.3 ISDN Virtual Private Network (ISDN-VPN)