Ascotel IntelliGate 2025/2045/2065
Part 1 Networking the Systems 75
4 Networking the Systems
Several systems can be combined into a private network (Private Integrated Serv-
ices Network: PISN) There are different ways of networking systems into a PISN:
• QSIG networking over IP network (see page 80):
Customers who already operate a voice-compatible IP data network between
different locations can use the network via IP Gateway to transmit voice traffic,
also (see "Ascotel IP Gateway AIP 6400", page 124) .
• Networking via leased lines (leased-line networking, see page 81):
If the systems are networked via ISDN leased lines, the only costs incurred as
for the permanent leased lines, not for call charges.
• Virtual networking (see page 81):
In virtual networking, traffic between the different locations is handled via the
public ISDN network. This type of networking is well suited, for example, for a
low call volume or for integrating field staff into the corporate network.
The system supports all three networking types as well as hybrid forms. The net-
working type best suited depends on the individual circumstances (see "Choosing
the Appropriate Networking Type", page 84).
Networking technology terminology
Before the basics of private networking are explained, the table below defines the
key terminology for networking technology:
Tab. 1.6: Networking technology terminology
Abbr. Term Explanation
– Exchange Short for → public network
– Break-in An external incoming → DDI connection for a PISN subscriber is
routed into the → PISN at the → PINX that is closest to the caller.
– Break-out An outgoing external connection is routed into the public ISDN
only at the PINX that is closest to the call destination.
CTX Centrex The designation Centrex, for Central Office Exchange Service, is a
product name which some network providers use for the services
provided by the
→ virtual PBX.
DSS1 Digital Subscriber Signalling 1 Signalling protocol for ISDN networks (also called Euro-ISDN)
To Next Page
Loading...
