Patent ID: 7729339
Filing Date: 2010-06-01
Classification: H04L

Abstract:
1. Within a telecommunications network, a method of processing half-calls each having opposing first and second ends, each of said half-calls being one of an originating half-call terminated at the first end thereof by calling consumer premises equipment and a terminating half-call terminated at the first end thereof by called consumer premises equipment, wherein an associated pair of half-calls connected at their second ends including both an originating and terminating half-call completes a call connecting the consumer premises equipment terminating the respective first ends of the half-calls that form the pair, said method comprising: (a) applying identifiers comprising audio watermarks to originating half-calls such that the originating half-calls are distinctly identifiable thereby with respect to one another, said identifiers thereafter accompanying terminating half-calls that form associated pairs of half-calls together with the originating half-calls to which the identifiers were applied; and (b) examining terminating half-calls to detect the identifiers such that upon detection of the identifiers the terminating half-calls accompanying the detected identifiers and the originating half-calls to which the identifiers were applied are recognized as associated pairs of half-calls.