Ascotel IntelliGate 2025/2045/2065
Part 1 Networking the Systems 79
Fig. 1.16: A PISN usually has at least 1 connection to the public network
Networking Philosophy
Owing to the system's sophisticated networking options, it is possible to set up a
whole range of private networks (PISN). Homogeneous networks exclusively with
PBXs of the Ascotel system family are as easily implemented as heterogeneous
networks with a mix of systems and PBXs by other manufacturers.
The system's networking philosophy is based on the assumption that the user
does not need any prior knowledge of the network topology. He can use the avail-
able features always in the same way, regardless of whether and how he is net-
worked.
Homogeneous and Heterogeneous PISN
Each PBX forms a node which is networked in a PISN. In network terminology,
networked PBXs are referred to as a PINX (for Private Integrated services Network
eXchange). A PINX can be set up using the following PBX types:
• ISDN PBX from the Ascotel system family
• ISDN PBX by other manufacturers
• Virtual PBX (private numbering plan from a public network provider)
Public network
PISN
ISDN-
PBX 2
ISDN-
PBX 1
ISDN-
PBX 3
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