747
Verifying the configuration
• Select Voice Management > States and Statistics > Local Survival Service States from the
navigation tree. You can find that number 5000 has been registered with the local SIP server on
Router C.
• Place a call from phone 55661000 to phone 88995000. The local SIP server on Router C removes
the area prefix 8899 from the called number, and alerts internal phone 5000. Pick up phone 5000.
The call is established.
Configuring a call-out route
Network requirements
The internal numbers of a company are four-digit long and the area prefix is 8899. External phone
55665000 attached to Router B is not registered with the local SIP server on Router C; internal phone
1000 attached to Router A is already registered with Router C. When a user in the company dials the
external number, the local SIP server will route the call according to the configured call-out route and add
area prefix 8899 to the calling number.
Figure 775 Network diagram
Configuring the local SIP server on Router C
# Configure the local SIP server to operate in alone mode.
1. Select Voice Management > SIP Local Survival > Service Configuration from the navigation tree to
access the page for configuring services.
Figure 776 Configuring alone mode
2. Select Enable for Server Running State.
3. Enter 2.1.1.2 in IP Address Bound to the Server.