Configuring Vofr Voice Bandwidth - HP FlexNetwork MSR Series Configuration Manual

Step
4. Create a VoFR entity and
enter VoFR entity view.
5. Configure a match template
for the VoFR entity.
6. Configure the out-of-band
DTMF transmission mode.
NOTE:
• In the dynamic mode, the DTMF transmission mode is determined by the configuration of the
VoFR entity on the originating side.
• In the FRF.11 trunk mode, the DTMF transmission mode is determined by the configurations of
the VoFR entities on the originating and terminating sides.
Enabling VAD
Step
1. Enter system view.
2. Enter voice view.
3. Enter voice dial program
view.
4. Create a VoFR entity and
enter VoFR entity view.
5. Enable VAD.

Configuring VoFR voice bandwidth

You can reserve the maximum amount of voice bandwidth to control the maximum number of calls. If
the required bandwidth is not greater than the remaining bandwidth, a new call is allowed. Otherwise,
the new call is rejected. For example, the reserved bandwidth is 64 kbps and each call requires a
bandwidth of 10 kbps, then only six calls can be set up concurrently and a seventh call will be
rejected. In the case of concurrent transmission of voice and data over a channel, the voice
bandwidth is processed in the following ways:
•
A bandwidth is reserved for voice to prevent degradation of voice quality due to the
consumption of the whole bandwidth by burst data. Once a call is set up successfully, the
bandwidth will be exclusively occupied by voice until the call is completed.
•
Voice takes precedence over data. The actual bandwidth in a call changes dynamically. When
no data is transmitted, the silence packets sent occupy only a very small portion of bandwidth.
This method avoids the bandwidth waste caused by bandwidth reservation for voice.
To configure VoFR voice bandwidth:
Step
1. Enter system view.
Command
entity entity-number vofr
match-template match-string
outband vofr
Command
system-view
voice-setup
dial-program
entity entity-number vofr
vad-on
Command
system-view
314
Remarks
N/A
By default, no match template is
configured for the VoFR entity.
By default, the inband DTMF
transmission is configured.
Remarks
N/A
N/A
N/A
N/A
Disabled by default.
Note that the G.711 codec does
not support VAD.
Remarks
N/A