Call Routing Configuration
- Nathaniel Halbrooks
- Kelli Higdon
This section will provide introduction to Sangoma SBC Call Routing
Call Routing Configuration Options
Sangoma SBC provide three interfaces call routing interfaces
WebGUI Call Routing
Default configuration method
Advanced XML file call routing
One or more XML configuration files can be used to store call routing information
Designed for advanced users.
Remote Database Call routing
For each call SBC requests routing information from centralized database.
What is call routing
Call routing is the process used to route telephone calls across a telephony network.
The process is the same whether calls are made between two phones the same locality, or across two different continents.
Three concepts to call routing
Condition
The outcome this routing rule is addressing.
The condition statement is used to determine how the call will be dealt if the rule turns out to be true or false.
Example:
Action to be performed if true
What action will be performed if the condition is found to be true.
Example: bridge to a different SIP trunk.
Action to be performed if false
What action will be performed if the condition is found to be false.
Example: send the originator a 503 service unavailable message.
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Call flow through Sangoma SBC
Call routing profile is bound to a Sangoma SBC Profile
An incoming call is processed by a Sangoma SBC Profile
SBCÂ Profile evokes a Call routing profile
Call routing profile determines an action to take based on incoming call
Bridge to another SIP Profile, SIP Trunk
Hangup
Transfer
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Routing rules are created in order to direct calls received from one interface, and bridge it out to the next interface.
SIP profiles or SIP trunks are used to bridge calls.
Routing rules can be as simple as bridging between trunks, or as complicated as choosing from a different carrier due to costs of routing.
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