| 摘要 |
The present invention relates to a method for checking a ring-back signal comprising the following steps, time synchronizing a first device (A) and a second device (B), causing an event by requesting the configuration of a ri ng-back signal with and for the first device (A) at a specific time stamp an d capturing the time stamp and the event in a first log file, calling the fi rst device (A) with the second device (B) at a specific time stamp, recordin g the ring-back signal of the first device (A), comparing the ring-back sign al with at least one reference signal yielding a comparison result, and capt uring the time stamp and the comparison result in a second log file, and com paring the second log file with the first log file.
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