Patent ID: 7447158
Filing Date: 2008-11-04
Classification: H04M

Abstract:
1. A method of testing signal characteristics of a communication formed from digital-network packets having a transport protocol, comprising: receiving one or more reference-digital-network packets corresponding to a predetermined clip, the one or more reference-digital-network packets having the transport protocol; extracting one or more reference-real-time protocol payloads from the one or more reference-digital-network packets as a reference clip; selecting a reference clip algorithm; generating one or more reference key values associated with the reference clip and with the reference clip algorithm; receiving one or more current-digital-network packets having the transport protocol; extracting one or more current payloads from the one or more current-digital-network packets as a current clip; selecting a current clip algorithm; generating one or more current key values associated with the current clip and with the current clip algorithm; and comparing the one or more current key values with the one or more reference key values to determine an occurrence of a match between the current clip and the reference clip, and wherein the reference clip algorithm is the same as the current clip algorithm, the reference clip algorithm to select the one or more reference key values by mapping a number of bits beginning at respect one or more byte offsets in the one or more reference real-time protocol payloads, and the current clip algorithm to select the one or more current key values by the same mapping of the same number of bits beginning at respective one or more byte offsets in the one or more current real-time protocol payloads.