Patent ID: 8401545

Claim:
A method for re-establishing an unintentionally-disconnected call in a communication system, the disconnection being a result of a loss of one of a plurality of connections that constitute the call, comprising the steps of: a. performing a call teardown procedure which releases resources of the communication system that were being used for the unintentionally-disconnected call; b. detecting that one connection of the call has been unintentionally-disconnected using a re-establishment system (RES) connected to a network associated with at least one of the parties to the call, the RES having a detection task module executing at least one detection task on a processor thereof and operative to: 1. receive the number identifications of the two parties; 2. receive a release message associated with the call, said release message originating in an MSC of the network that initiated the call termination, the release message including one or more cause-indicators; and 3. test the cause-indicator in the received release message in a machine executing the RES to determine a match to a prescribed criterion; and c. in the event of the match, executing a re-establishment task within the RES using a re-establishment task module; wherein the re-establishment task executes to dial user A, who is the party that has been unintentionally disconnected from the network, and to keep redialing for a predefined time limit until user A answers; wherein, if user A answers within the predefined time limit, then the re-establishment task performs the additional steps at the RES of: dialing user B, who is the other party to the call, and if user B answers, bridging user A and user B.