Voice over IP (VoIP)
119
•
Up to four 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, DECT over 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 119).
MGW Interface Card
A Media Gateway card (M100-IP) is available for the OpenCom 130 and the
OpenCom 150. This interface card implements eight simultaneously usable Media
Gateway channels.
Technical Data
•
The MGW interface card is connected via the slot to the internal ethernet Switch.
There are no external ports via pressure terminals.
•
With an OpenCom 130 the MGW interface card can be operated in slot 2 or slot 3.
•
With an OpenCom 150 up to two MGW interface cards can be operated in slots 3
and 4.
•
The MGW interface card supports: all the codecs, as well as the silence detection,
echo suppression and DTMF tone detection used by VoIP telephones.
•
The MGW interface card can not be operated in a slave system.
•
The MGW interface card contains the required software in its own Flash memory.
This software is updated using a separate file in the
Configurator
via the
System:
Components
.
Operational Information
The MGW interface card must be correctly inserted and configured (see also Installing
Interface Cards starting on page 35).
Each MGW interface card requires its own IP address. This can either be assigned stati-
cally or obtained via DHCP.
1.
In the
Configurator
, open the
Telephony: Ports: Slots
page.
2.
Click on the slot number in the table column containing the desired interface card.
Summary of Contents for OpenCom 100 series
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