Voice over IP (VoIP)
120
3. Enter the desired static IP address in the IP address configured field. Enter
“0.0.0.0” to obtain an IP address via DHCP.
4. Confirm with Apply.
The configuration page displays the MGW interface card’s MAC address. You will need
this for the static assignment of an IP address via a DHCP server.
Note
During the commissioning of a MGW interface card, the software MGW function is
automatically switched off.
Updating the interface card’s software
Whenever a newer version of the M100-IP Gatewaymodul interface card’s software
becomes available, you can use the System: Components to load it (MGC VoIP
option, “mgw_xxxx.tar.gz” file). The file size of a software update is approx. 2 meg-
abyte and it takes approx. 5 minutes to load it via a LAN.
Version display
The current version of the of the M100-IP Gatewaymodul interface card’s software is
displayed on the Telephony: Ports: Slots status page.
SIP Telephony
The SIP Internet (Session Initiation Protocol) protocol provides you with a low-cost,
standardised option for telephoning via IP-based networks. The OpenCom 130 / 150
enables you to use external SIP telephone connections (“SIP trunk lines”). The
OpenCom 100 communications system supports configuration of standard SIP lines
with one call number for each as well as extension-capable SIP-DDI lines with base call
number and extension.
Furthermore, internal SIP subscribers, SIP telephones or SIP telephony software are
also supported (see also Quick Start: External SIP Line starting on page 107 and
Internal SIP Telephony starting on page 109).
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