2672 CHAPTER 175: E1 AND T1 CONFIGURATION COMMANDStimeout time of answer signals for internal function call in a module is configuredat the terminating point.clear-back time: Timeout time in milliseconds of R2 clear-back signal, in the rangeof 100 to 60,000 with a default of .10,000. After the terminating point sends aclear-back signal, it should recognize the forward signal sent back by theoriginating point within the timeout time.clear-forward time: Timeout time in milliseconds of R2 clear-forward signalconfigured at the originating point, in the range of 100 to 60,000 with a defaultof 10,000. After the originating point sends a clear-forward signal, theterminating point should send back a corresponding line signal, clear-back orrelease guard for example, within the timeout time.seizure time : Timeout time in milliseconds of R2 seizure signal configured at theoriginating point, in the range of 100 to 5,000 with a default of 1,000. After theoriginating point sends a seizure signal, the terminating point should send back aseizure acknowledgement signal within the timeout time.re-answer time: Timeout time in milliseconds of R2 re-answer signal configuredat the originating point, in the range 100 to 60,000 milliseconds with a default of1,000. The originating point releases the line if it does not receive another answersignal from the terminating point after it recognizes the clear-back signal.release-guard time: Timeout time in milliseconds of R2 release guard signalconfigured at the originating point, in the range of 100 to 60,000 with a defaultof 1,000. The originating point should send a release guard signal within thetimeout time after it receives a clear-back signal from the terminating point inresponse to a clear-forward signal.Description Use the timer dl command to configure timeouts of R2 line signals.Use the undo timer dl command to restore the defaults.This command applies to R2 signaling only.Example # Set the timeout time of R2 seizure signal to 300 milliseconds. system-view[Sysname] controller e1 1/0[Sysname-e1 1/0] timeslot-set 0 timeslot-list 1-31 signal r2[Sysname-e1 1/0] cas 0[Sysname-cas1/0:0] timer dl seize 300timer dtmfSyntax timer dtmf timeundo timer dtmfView R2 CAS view
