Telephonic communications – Special services – Service trigger
Patent
1991-12-30
1994-12-20
Dwyer, James L.
Telephonic communications
Special services
Service trigger
3701101, 379219, 379224, 379230, H04M 342, H04M 700, H04J 312
Patent
active
053751671
ABSTRACT:
A system for distributing a numbering plan to switching nodes which are organized in a dialing plan hierarchy and for allowing an individual switching node to redistribute blocks of numbers to other switching nodes upon requests from those switching nodes to own the requested blocks of numbers. Further, the dialing plan hierarchy is automatically established upon system initialization with each switching node determining its position in that hierarchy. In addition, a switching node that needs to use only one number of a block owned by another switching node can request permission from the other switching node to use that telephone number for a telephone connected to the switching node. Such a use is referred to as hosting the telephone number. Hosting allows a telephone connected to one switching node to have a telephone number owned by another switching node and eliminates the constraint of requiring every telephone connected to a switching node to use a number from the block of numbers own by that switching node.
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Bales Bruce M.
Crumpley Robert L.
North Sandra S.
Thieler Stephen M.
AT&T Corp.
Dwyer James L.
Hong Harry S.
Moran John C.
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