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Figure 765 Configuring a user
8. Enter 1000 for User ID.
9. Enter 1000 for Telephone Number.
10. Click Apply.
# Configure user 5000 in the similar way.
Configuring Router A
1. Configure a local number in the local number configuration page: The ID is 1000, the number is
1000, and the bound line is line2/0.
2. Configure a call route to Router B in the call route configuration page: The ID is 5000, the
destination number is 5000, the routing type is SIP, and the SIP routing method is proxy server.
3. Configure SIP registration in the connection properties configuration page: Enable SIP
registration, and configure the main registrar’s IP address as 3.1.1.2, and the backup registrar’s
IP address as 2.1.1.2.
Configuring Router B
1. Configure a local number in the local number configuration page: The ID is 5000, the number is
5000, and the bound line is line2/0.
2. Configure a call route to Router A in the call route configuration page: The ID is 1000, the
destination number is 1000, the routing type is SIP, and the SIP routing method is proxy server.
3. Configure SIP registration in the connection properties configuration page: Enable SIP
registration, and configure the main registrar’s IP address as 3.1.1.2, and the backup registrar’s
IP address as 2.1.1.2
Verifying the configuration
• When the VCX fails, the local SIP server on Router A starts to accept registrations from phones,
which then can call each other through Router A. Select Voice Management > States and
Statistics > Local Survival Service States from the navigation tree. You can find that
numbers 1000 and 5000 have been registered with the local SIP server on Router A.
• When the VCX recovers, Router A disables the local SIP server, and the phones register with
the VCX again.
Configuring call authority control
Network requirements
The numbers for Department A in a company are in the range of 1000 to 1999, while those for
Department B are in the range of 5000 to 5999. The following restrictions need to be implemented:
• Phones in Department A and Department B cannot originate external calls.
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