Aastra Ascotel IntelliGate 2065 - 4.2 Networking Types (Topologies); 4.2.1 QSIG networking over IP network

Ascotel IntelliGate 2025/2045/2065
80 Networking the Systems Part 1
In a homogeneous network all the PINXs are from the Ascotel system family. If
PBXs by other manufacturers are also used in a network, we talk of a heteroge-
neous network.
4.2 Networking Types (Topologies)
Taking technical, organizational and tariff conditions into account calls for a flex-
ible networking concept so that optimum customer solutions can be imple-
mented. Other factors that influence the choice of networking type are the den-
sity and nature of the communication relations. The following chapters provide
explanations of the different networking types.
4.2.1 QSIG networking over IP network
With QSIG networking over IP network voice data and QSIG signalling are trans-
mitted in the Intranet as IP data packets. The intranet with QSIG / PSS1 supports
the same scope of features as networking via leased lines (this is also referred to
as "QSIG tunnelling").
If an existing intranet can be utized for voice connections (Quality of Service: QoS
must be supported), ISDN network call charges do not apply (tollbypass). If all the
voice channels of the IP Gateway are busy, the calls can automatically be routed
via the ISDN network (see "Testing overflow routing in the PISN", page 343). An
IP Gateway is required for each PBX.
Fig. 1.17: QSIG over IP network (AIP LAN route)
IP
LANLAN
ISDN
haz0780aaenc0
PBX
AIP
PBX
AIP