| 摘要 |
A method of monitoring performance of a telephone network, wherein the telephone network includes at least one exchange configured for collecting signaling messages, which are received at the at least one exchange and/or which are generated at the at least one exchange. The method includes acquiring from the exchange a set of signaling messages indicating unsuccessful call setup procedures relative to calls addressed to a plurality of destinations associating with each signaling message of the set of signaling messages respective destination information which is indicative of the destination of the unsuccessful call which generated the signaling message; and processing the set of signaling messages and the corresponding associated destination information, thus obtaining information relative to the unsuccessful call setup procedures according to call destinations.
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