Aastra Ascotel IntelliGate 2025 - 4.2.5 Virtual Networking with a Virtual PBX (Centrex)

Ascotel IntelliGate 2025/2045/2065
Part 1 Networking the Systems 83
[1] Connection to the public network
[2] Virtual connection between two PINXs
[3] Physical connection between two PINXs
Fig. 1.20: Example of a combined network
4.2.5 Virtual Networking with a Virtual PBX (Centrex)
Some network providers offer a private numbering plan (PNP) as a service.
Together with ISDN supplementary services, e. g. rerouting services, this means
that the customer has a virtual PBX at his disposal. Some network providers mar-
ket this facility under the name Centrex while others use the general term VPN
(Virtual Private Network).
A virtual PBX can easily be integrated as a PINX in a PISN. The system supports
private numbering plans and incorporates them seamlessly into its own network
functionality.
Public network
[2]
[3]
[3]
[1]
[1]
PISN
PISN
haz0654aaena0
PINX 1
PINX 2
PINX 3
PINX 1
PINX 2
PINX 3