Using Prefix Groups

Prefix Groups make routing management and Dial Plan management easier, more efficient and more convenient for network operators. The feature also makes it possible to import an existing customer’s Dial Plan into the ARM using the northbound REST API.

Every routing rule can have dozens of prefixes. Grouping prefixes and then associating groups with routing rules reduces visual complexity and allows for more effective management. Prefix Groups save operators from repeatedly having to add prefixes to rules.

Once defined, the Prefix Group comprising multiple prefixes is associated with a routing rule (see Adding a New Routing Rule for information on how define a routing rule). If, for example, an enterprise has distributed offices, the following can be defined: If a caller calls from source prefix x, the call is sent from SBC 1; if a caller calls from source prefix 2, the call is sent from SBC 2.

To develop a customer-specific Dial Plan into an ARM Prefix Group, the REST API is available. This can significantly facilitate ARM provisioning.