System Outline Of Isdn-Vpn; Figure 1-3 Example Of Isdn-Vpn (1 Of 2) - NEC Neax 2000 IVS2 Manual

CHAPTER 1 GENERAL INFORMATION
System Outline

System Outline of ISDN-VPN

The Virtual Private Network (VPN) is a service which provides an interoffice private line via an
ISDN network.
When you dial a station number (Called Party Subaddress), the system sends a pre-assigned
office number of a called party together with the Called Party Subaddress to an ISDN network.
With this function, an interoffice call can be made by only dialing a station number (Called Party
Subaddress).
Figure 1-3 shows an example of using the VPN.
• When an opposite office can interface with the ISDN network
Dial 1234
Calling Party
Page 6

Figure 1-3 Example of ISDN-VPN (1 of 2)

PBX
0345678910 (Office No.)
1234 (Called Party Subaddress)
A
PBX
ISDN
B
(034567-8910)
Called Party
Station No. 1234
2
NEAX2000 IVS ISDN System Manual
ND-70919 (E), Issue 1.0