Chapter 5. How To Configure Advanced SIP

Multiple Operators (Least Cost Routing)

If any of the SIP operators use accounts, enter that on the Local Registrar page. You enter the username and password from the operator, and select the XF/Register account type. This account type will make the Telecommuting Module register at the SIP operator with the credentials you enter.

Some operators don’t require registration. In this case, select the XF account type instead.

You can select any network in the Register from field, as it is not used for these account types.

On the Dial Plan page, you define what type of calls should be redirected to your SIP operator. First, turn the Dial Plan on.

In the Matching From Header table, you define from which network the calls can come. You can also select what the From header (that tells who is calling) should look like. This is used when matching requests in the Dial Plan table below. Name each definition properly, to make it easier to use further on.

In this office, there is a group of phones that always put a "+" first in the phone number when dialing a non-US number. We need to match on these to handle them specially.

In the Matching Request-URI table, you define callees. This is used when matching requests in the Dial Plan table below.

In this case, you want to sort out calls that should be routed to the different operators. You might have a UK operator and a US operator, and thus you want to be able to recognize these calls.

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