A network region is a logical grouping of IP endpoints, including IP stations, IP trunks, and gateways sharing the same transmission characteristics or VoIP and signaling resources. The Network-region connect (NR-CONN) MO monitors VoIP connectivity between network regions and raises:

As a background operation during each 2-minute interval, Test #1417 checks the translated connections between 50 pairs of network regions until every translated connection has been tested, and then repeats. The Communication Manager translation table’s maximum capacity for network-region connections is 31,250. Testing every possible connection would require 625 2-minute test intervals during about 21 hours.