Configuring R2 digital line signaling

1. Enter system view.

system-view

N/A

2. Enter E1/T1 interface view.

controller { e1 | t1 } slot-number

N/A

3. Create a TS set and enable R2 signaling for it.

timeslot-set ts-set-number timeslot-list timeslots-list signal r2

N/A

4. Enter R2 CAS view.

cas ts-set-number

N/A

5. Enable the terminating side to send answer signal.

answer enable

Optional.

Enabled by default.

6. Enable the originating side to support re-answer signal processing.

re-answer enable

Optional.

By default, the originating side does not support processing of re-answer signals.

7. Enable the terminating side to send clear-forward acknowledgement signal (clear-back signal).

clear-forward-ack enable

Optional.

Disabled by default.

8. Enable metering for R2 signaling.

force-metering enable

Optional.

Disabled by default.

9. Enable the terminating side to send seizure acknowledgement signal.

seizure-ack enable

Optional.

Enabled by default.

10. Configure the ABCD bit pattern for each type of R2 line signal.

dl-bits { answer | blocking | clear-back | clear-forward | idle | seize | seizure-ack | release-guard } { receive | transmit } ABCD

Optional.

For more information, see Table 11.

11. Configure the C and D signal bits.

renew ABCD

Optional.

N/A

12. Configure line signal inversion mode.

reverse ABCD

Optional.

The default is 0000, that is, line signal inversion disabled.

13. Set timeout values of line signals.

timer dl { answer | clear-back | clear-forward | | re-answer | release-guard | seize } time

Optional.

The default is 60,000 milliseconds for answer signal; 10,000 milliseconds for clear-back signal and clear-forward signal and release-guard signal; 1,000 milliseconds for seizure signal and re-answer signal.

Answer

0101

0101

Blocking

1101

1101

Clear-back

1101

1101

Clear-forward

1001

1001

Idle

1001

1001

Seize

0001

0001

Seizure-ack

1101

1101

Release-guard

1001

1001