Sample Routes

It is also advisable to use descriptive names that reference a site name and the destination gateway for voice routes and PSTN usages. A sample set of PSTN usage and route names where round-robin gateway distribution is used for Company ABC’s routes is provided here, but these names can be modified for any site or organization’s standards. A sample set can look like this:

US-CA-San Francisco-Service Codes-SFGWs

US-CA-San Francisco-Local-SFGWs

US-CA-San Francisco-Toll-Free-SFGWs

US-CA-San Francisco-National-SFGWs

US-CA-San Francisco-International-SFGWs

The advantage to this is that administrators can insert all or some of these usages in various voice policies to control what numbers can be called. Since the names easily identify the type of call, it will be easy to troubleshoot issues that might occur later.

An alternative example in which calls first attempt using SFGW1, and use SFGW2 only if SFGW1 is unavailable, looks like this:

US-CA-San Francisco-Service Codes-SFGW1

US-CA-San Francisco-Service Codes-SFGW2

US-CA-San Francisco-Local-SFGW1

US-CA-San Francisco-Local-SFGW2

US-CA-San Francisco-Toll-Free-SFGW1

US-CA-San Francisco-Toll-Free-SFGW2

US-CA-San Francisco-National-SFGW1

US-CA-San Francisco-National-SFGW2

US-CA-San Francisco-International-SFGW1

US-CA-San Francisco-International-SFGW2

When beginning to plan voice routes, use the following tips:

• Identify the area codes considered local to each PSTN gateway.

• If using multiple gateways in a site, decide whether outbound calls will be load balanced or distributed in a primary/secondary fashion.

• Use the same, descriptive names for PSTN usages and voice routes.