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2664 CHAPTER 175: E1 AND T1 CONFIGURATION COMMANDS
You may set a signal value to 16 to indicate that the signal function does not exist.
For example, if the send last digit signal is not available in a national R2 signaling
variant, you may set the value for req-lastfirstdigit to 16.
The purpose of the register-value command is to assign values for signals
requesting responses from the remote end. For example, after you configure the
register-value callingcategory command, the terminating point sends the send
calling category signal with the specified value to the originating point for the
calling category.
This command applies to R2 signaling only.
n
As some national register signal coding schemes may not support all the register
signals mentioned in this section, you are recommended to use defaults unless
necessary. For example, the ITU-T recommendation is available with the send
calling category signal (the callingcategory keyword) but not the send billing
category (billingcategory) signal.
Related command: group-b enable.
Example # Request the originating point to send calling category by configuring a
backward signal (signal value 7).
<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] register-value req-callingcategory 7
renew
Syntax renew ABCD
undo renew
View R2 CAS view
Parameter ABCD: Defines the default of each signal bit in transmission. Each bit can take the
value of 0 or 1. The default C and D bit values vary by country mode.
Description Use the
renew command to configure the values of C bit and D bit in R2
signaling.
Use the
undo renew command to restore the default. The default value varies
with R2 signaling standards in countries.
This command applies to R2 signaling only.
R2 signaling uses bits A and B to convey real status information while leaving bits
C and D constant. The values of bits C and D are national variant dependent. For
example, they are fixed to 01 in most countries but 11 in some other countries.