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2672 CHAPTER 175: E1 AND T1 CONFIGURATION COMMANDS
timeout time of answer signals for internal function call in a module is configured
at the terminating point.
clear-back time: Timeout time in milliseconds of R2 clear-back signal, in the range
of 100 to 60,000 with a default of .10,000. After the terminating point sends a
clear-back signal, it should recognize the forward signal sent back by the
originating point within the timeout time.
clear-forward time: Timeout time in milliseconds of R2 clear-forward signal
configured at the originating point, in the range of 100 to 60,000 with a default
of 10,000. After the originating point sends a clear-forward signal, the
terminating point should send back a corresponding line signal, clear-back or
release guard for example, within the timeout time.
seizure time : Timeout time in milliseconds of R2 seizure signal configured at the
originating point, in the range of 100 to 5,000 with a default of 1,000. After the
originating point sends a seizure signal, the terminating point should send back a
seizure acknowledgement signal within the timeout time.
re-answer time: Timeout time in milliseconds of R2 re-answer signal configured
at the originating point, in the range 100 to 60,000 milliseconds with a default of
1,000. The originating point releases the line if it does not receive another answer
signal from the terminating point after it recognizes the clear-back signal.
release-guard time: Timeout time in milliseconds of R2 release guard signal
configured at the originating point, in the range of 100 to 60,000 with a default
of 1,000. The originating point should send a release guard signal within the
timeout time after it receives a clear-back signal from the terminating point in
response 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.
<Sysname> 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 300
timer dtmf
Syntax timer dtmf time
undo timer dtmf
View R2 CAS view