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User Manual - Configuration Guide (Volume 3)
Versatile Routing Platform
Chapter 3
E1 Voice Configuration
3-11
3.2.8 Configuring Voice Port (ISDN PRI Interface)
Before entering voice port (ISDN PRI interface) configuration mode, first the ISDN PRI
group needs to be created, so that the system will create the voice port corresponding
to the PRI group automatically.
Please perform voice-port configuration in global configuration mode and perform other
configurations in voice port configuration mode.
Table VC-3-8 Configuration Commands of ISDN Voice Port
Operation Command
Enter voice port configuration mode voice-port port-number :15
Enable comfort noise setting comfort-noise
Disable comfort noise setting No comfort-noise
Establish PLAR mode connection for voice port connection plar telephone-number
Delete the PLAR connection of the voice port No connection plar
Configure the description information of the port description string
Delete the description information of the port No description
Enable echo cancellation function or set the time coverage of
echo cancellation sampling
echo-cancel { enable | coverage coverage-time }
Cancel echo cancellation function or recover the default
value of the time coverage of echo cancellation sampling
no echo-cancel { enable | coverage }
Configure voice input gain input gain value
Recover the default value of voice input gain no input gain
Set echo cancellation to use non-linear processing procedure non-linear
Cancel echo cancellation’s use of non-linear processing
procedure
no non-linear
Configure voice output attenuation output attenuation value
Recover the default value of voice output attenuation no output attenuation
Disable the voice port shutdown
Enable the voice port no shutdown
By default,
comfort-noise
(i.e. enable comfort noise setting) command becomes
effective,
no connection plar
(i.e. the system has not established PLAR mode
connection initially.) command becomes effective, and
non-linear
(i.e. start non-linear
processing procedure) command becomes effective.
The default value of configuration command
echo-cancel
(enable echo cancellation) is
enable, and e
cho-cancel coverage
(the time coverage of echo cancellation sampling)
16ms, and
input gain
(voice input gain) 0, and
output attenuation
(voice output
attenuation) 0.
3.3 Monitoring and Maintenance of E1 Voice
I. Maintaining the MFC Channel and Circuit of the Specified TS
MFC channel is used to bear R2 register signaling, while the circuit is used to bear the
actual incoming and outgoing calls. You can perform maintenance operations such as
open, block and query to the MFC channel of the specified TS. You can perform
operations such as open, block, query and reset to the trunk circuit of the specified TS.
The operations of open and block are reverse process to each other.