R2511-HP MSR Router Series Voice Configuration Guide(V5)

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Step Command Remarks
4. Enable VAD globally as the
default.
default entity vad-on
Optional.
Not enabled by default.
5. Specify the default global
codecs and their priority
levels.
default entity compression
{ 1st-level | 2nd-level | 3rd-level |
4th-level } { g711alaw | g711ulaw
| g723r53 | g723r63 | g726r16
| g726r24 | g726r32 | g726r40
| g729a | g729br8 | g729r8 }
Optional.
By default, the codec with the first
priority is g729r8, that with the
second priority is g711alaw, that
with the third priority is g711ulaw,
and that with the fourth priority is
g723r53.
The default entity compression
command takes no effect on IVR
voice entities.
6. Configure globally the default
voice packetization period for
different codecs.
default entity payload-size { g711
| g723 | g726r16 | g726r24 |
g726r32 | g726r40 | g729 }
Optional.
The default is 20 milliseconds for a
G.711 codec, and 30 milliseconds
for G.723, G.726, and G.729
codecs.
Enabling FXO monitoring
When FXO monitoring is enabled, the router displays the physical state as down for FXO ports that are
loosely connected or not connected at all.
In environments with instable PSTN lines or poor line quality, FXO monitoring might detect that some lines
are disconnected although those line are actually connected, resulting in call failures. To avoid this
problem, disable FXO monitoring.
To enable FXO monitoring:
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter voice view.
voice-setup N/A
3. Enable FXO monitoring.
fxo-monitoring enable
Optional.
By default, FXO monitoring is
enabled.
Enabling the trap function
With the trap function enabled on a call module, when it originates a call, traps with the severity level
warning are generated by the module to inform the important events. These traps will be sent to the
information center of the device. You can set parameters for the information center to determine the
output rules of traps. For more information about the parameter settings of the information center, see
Network Management and Monitoring Configuration Guide.
You can enable the trap function either globally or for an entity. If it is enabled globally, traps will be
generated for all entities. If it is enabled only for a specified entity, traps are generated only for this entity.