Hybrid Device Routing Logic

The ARM routes calls from the hybrid device's PSTN (gateway application) to IP (SBC application) or vice versa.

Calls cannot be routed from an IP Group (PCon in ARM) associated with a gateway application, to an IP Group associated with an SBC application on the same hybrid device.

To support a hybrid device, two internal IP Groups must be configured:

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From the SBC application to the Media Gateway application

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From the Media Gateway application to the SBC application

The ARM GUI does not display these two internal IP Groups. Routing is performed per the logic described under SBC Routing Logic and Gateway Routing Logic, respectively.

See Migrating Hybrid Routing to the ARM for information about how to migrate hybrid device routing to the ARM.