Local number portability service saver

Telephonic communications – Special services – Service trigger

Patent

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Details

379219, 379333, 379336, H04M 342

Patent

active

061608807

ABSTRACT:
Local telephone number portability is effected with automatic changeover of local telephone service for a subscriber station from an incumbent local exchange carrier (ILEC) loop to a competing local exchange carrier (CLEC) loop. A relay device that may be placed remotely at the subscriber's location automatically effects a change in physical connection of the subscriber's line in response to an incoming call routed to the customer premises via the CLEC switching facility. The physical presence of a technician thus is not required at the customer premises at the time changeover of service is made. Delay in the capability of receiving incoming calls at the customer premises during changeover of service is avoided by ensuring that physical reconnection is made only after the appropriate updated routing information has been made to the PSTN network. If a call via the old subscriber service is in progress, automatic reconnection is inhibited until an off-hook condition is realized.

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