Patent ID: 8934481
Filing Date: 2015-01-13
Classification: H04M

Abstract:
1. A method for preventing a loop condition on a network boundary interface between a plurality of telephone networks, comprising: receiving, at a network server on a first network, a first call parameter value associated with a telephone call, the first call parameter value being a predetermined number of remaining transmissions of the telephone call to one or more nodes of the first network that will be permitted before the telephone call is cleared as an unconnectable telephone call; generating a second call parameter value associated with the telephone call using the first call parameter value, the second call parameter value being a parameter that will be used on a second network to determine the remaining transmissions of the telephone call to one or more nodes of the second network that will be permitted before the telephone call is cleared as an unconnectable telephone call; and receiving, at the network server, a third call parameter value associated with the telephone call as calculated using the second call parameter value, wherein the third call parameter value is less than the first call parameter value, the third call parameter value being a predetermined number of remaining transmissions of the telephone call to the one or more nodes of the first network that will be permitted before the first telephone call is cleared as an unconnectable telephone call, and wherein the second call parameter value is calculated by artificially decrementing the parameter values after applying a conversion factor to make sure the second parameter value is not too small to prevent the telephone call from reaching a terminating destination.