Proximus forum 523, Mounting And Commissioning Manual

Page: 102 / 228

Media Gateway (MGW)
100 Voice over IP (VoIP)
Software MGW
The system software for Forum 523/524 provides a Media Gateway function.
Depending on the system processor utilisation and available system memory
up to 32 MGW additional channels may be available.
The Media Gateway function provided by the system software has the
following features:
● Up to 32 channels can be used simultaneously.
●
The MGW channels are not compressed, so only the G.711 codec is
available.
● There is no echo suppression.
● Voice quality may be reduced during high system utilisation.
● Q.SIG-IP, DECTover IP and SIP are not possible.
For optimal call quality and high availability, you should consider using a MGW
interface card (see also
MGW Interface Card starting on page 100).
The Media Gateway function (“Software MGW”) is used preferably for connec-
tions with the G.711 codec - even if a MGW interface card is installed.
MGW Interface Card
A Media Gateway interface card providing 8 simultaneously-usable Media
Gateway channels is available for Forum 523/524.
Technical Data
● The MGW interface card is connected to the internal ethernet switch via
the slot. No external ports operating via pressure terminals are provided.
● A MGW interface card can be installed in slot 2 of Forum 523/524.
● The MGW interface card supports all the codecs, as well as the silence
detection, echo suppression and DTMF tone detection used by VoIP tele-
phones.
● The MGW interface card has the required software stored in its Flash
memory. The software is updated automatically with a system software.
Information on Use
The MGW interface card must be correctly inserted and configured (see also
Interface Cards starting on page 37).