Patent ID: 8406793
Filing Date: 2013-03-26
Classification: H04L,H04W

Abstract:
1. A method for delivering a message from an originating subscriber to a target subscriber across a communication network comprising the steps of: receiving in a first network a message from an originating subscriber to a target subscriber and an identifier of the target subscriber, the target subscriber being associated with the first network and the originating subscriber being associated with a second network, the message and identifier being received from the second network; identifying at least one network node associated with the target subscriber and being responsible for delivering messages to the target subscriber; selecting a network node from the at least one network node for delivery of the message; receiving from the second network an allowed time period for delivery of the message; determining the expected delivery time of the message for the selected network node; before an attempt to deliver the message to the selected network node, comparing the expected delivery time with the allowed time period for delivery; when the allowed time period meets or exceeds the expected delivery time, forwarding the message to the selected network node for delivery to the target subscriber; and when the expected delivery time exceeds the allowed time period, cancelling the attempt to deliver the message to the selected network node, and sending a negative delivery message to the second network.