This topic provides more information about how the VRC Discovery process works.
VRC reads the dial plan configuration for each element on a region by region basis. Within each region, the dial plan configuration is read in the following order:
Gatekeepers
Directory gatekeepers
Gateways (dial peers that are shut down are ignored)
VRC constructs routes based on dial peers. Ingress routes are created during the discovery process:
From an inbound POTS and one outbound VoIP dial peer combination, VRC creates an ingress route with a dial peer type of Both.
From one outbound VoIP dial peer, VRC creates an ingress route with a dial peer type of VoIP.
From one inbound POTS dial peer, VRC creates an ingress route with a dial peer type of POTS.
Similarly, egress routes are created during the discovery process:
From one inbound VoIP and one outbound POTS dial peer combination, VRC creates an egress route with a dial peer type of Both.
From one inbound VoIP dial peer, VRC creates an egress route with a dial peer type of VoIP.
From one outbound POTS dial peer, VRC creates an egress route with a dial peer type of POTS.
During Discovery, if routes with similar parameters apply to all voice ports on a gateway, VRC combines them into one route on the gateway. Similarly, if routes with similar parameters apply to all gateways in a zone, VRC combines them into one route for the zone.
VRC maintains all route names and descriptions, and all route scope names and descriptions during discovery.
From a discovery design session you can:
Commit the Discovered dial plan. This overwrites the baseline dial plan. If VRC detects any errors during Discovery, you might be required to edit the dial plan before you can commit a design.
Edit the Discovered dial plan and commit the modified dial plan to the baseline. This overwrites the baseline dial plan and distributes the modified dial plan to the network elements affected by the modifications.
Exit the Discovery design session and discard any changes.
Note: The first running configuration for all Discovered elements are stored in the origconfig directory, even if the VRC Discovery is discarded.