2 Under SIP Parameters, enter the V7122 gateway domain name in the Gateway Name
field. If the field is not specified, the V7122 gateway IP address is used instead (default).
3 When working with a Proxy server, set the Working with Proxy field to Yes, and then
enter the IP address of the primary Proxy server in the Proxy IP Address field. When no
Proxy is used, the internal routing table is used to route the calls.
4 Enter the Proxy name in the Proxy Name field. If Proxy name is used, it replaces the
Proxy IP address in all SIP messages. This means that messages are still sent to the
physical Proxy IP address but the SIP URI contains the Proxy name instead.
5 Configure Enable Registration to Yes or No:
No = the V7122 gateway does not register to a Proxy server/Registrar (default).
Yes = the V7122 gateway registers to a Proxy server/Registrar at power up and every
Registration Time seconds. For detailed information on the parameter Registration Time
see the V7122 Digital Gateway User Guide.
6 Select the coder (that is, vocoder) that best suits your VoIP system requirements. The
default coder is: G.723.1 30 msec. To program the entire list of coders you want the
V7122 gateway to use, see the V7122 Digital Gateway User Guide.
7 Map outgoing calls to IP addresses (when Proxy is not used) by completing these steps:
a) Click the arrow button next to the Tel to IP Routing Table label; the Tel to IP Routing
screen opens.
Any telephone number whose destination number matches the prefix defined in the
Destination Phone Prefix field and whose source number matches the prefix defined in
the adjacent Source Phone Prefix field, is sent to the IP address entered in the IP
Address field.
b) Click Submit; the Tel to IP Routing table is automatically updated.
c) Click Quick Setup; you are returned to the Quick Setup screen.
For more information about the Tel to IP Routing table see the V7122 Digital Gateway
User Guide.
8 Enable E1/T1 B-channels by completing these steps:
a) Click the arrow button next to the Trunk Group Table label; the Trunk Group Table
screen opens.
b) Select the number of the trunk you want to enable from the Trunk ID drop-down list.
c) Enter the number of B-channels you want to enable in the Channels field.
d) Enter the starting phone number in the adjacent Phone Number field (these are
virtual numbers, used only to define enabled B-channels).
e) Click Submit; the Trunk Group Table is automatically updated.
f) Click Quick Setup; you are returned to the Quick Setup screen.
9 Click the Reset button, and then at the prompt click OK; the V7122 gateway applies the
changes and restarts. This takes approximately three minutes to complete. When the
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V7122 Digital Gateway Installation Guide
