Electronic Translator System for Toll Switching-Routing Strategy and Network Control

Call routing proceeds, in general, by direct indexing into head-cell referenced tables. A link controller software stage retrieves and stores data pertinent to incoming trunk identification in memory assigned to the sender seized for the call. The decoder channel software stage, separated in time from the link controller stage by electromechanical functions, uses the incoming trunk and sender information to select a routing pattern hierarchy and associated outgoing trunk groups. The routing can be temporarily modified by network control cancellations, skips, and reroutes.