3Com VCX V7122 User Manual page 39

for the 2nd to 5th coders appear. Select coders according to your system requirements.
Note that coders higher on the list take precedence over coders lower on the list.
The preferred coder is the coder that the VCX V7122 uses as a first choice for all
connections. If the far end gateway does not use this coder, the VCX V7122
negotiates with the far end gateway to select a coder that both sides can use.
7 To program the Tel to IP Routing Table, press the arrow button next to 'Tel to IP Routing
Table'. For information on how to configure the Tel to IP Routing Table, see
Routing Table on page 52.
8 To program the E1/T1 B-channels, press the arrow button next to 'Trunk Group Table'.
For information on how to configure the Trunk Group Table, see
Group Table on page 62.
9 Click the Reset button and click OK in the prompt; The VCX V7122 applies the changes
and restarts, taking approximately 3 minutes to complete. When the VCX V7122 has
finished restarting, the Ready and LAN LEDs on the front panel are lit green.
10 After the gateway was reset, access the Advanced Configuration>Trunk Settings page,
and select the gateway's E1/T1 protocol type and Framing method that best suits your
system requirements. Note that for E1 spans, the framing method must always be set to
'Extended Super Frame'. For information on how to configure the Trunk Settings see
Configuring the Trunk Settings
You are now ready to start using the gateway. To prevent unauthorized access to the VCX
V7122, it is recommended that you change the username and password that are used to
access the Web Interface. See
page 75 for details on how to change the username and password.
Once the gateway is configured correctly, back up your settings by making a copy
of the VoIP gateway configuration (ini file) and store it in a directory on your
computer to restore configuration settings at a future time. See
Backing Up the Gateway Configuration
3Com VCX V7122 SIP VoIP Gateway User Manual
on page 69.
Changing the VCX V7122 Username and Password
on page 72.
Tel to IP
Configuring the Trunk
on
Restoring and
39