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configure the advantage factor. When the system calculates the ICPIF value, this advantage factor is
subtracted to modify ICPIF and MOS values and both the objective and subjective factors are considered
when you evaluate the voice quality.
Configuration prerequisites
Voice tests require cooperation between the NQA server and the NQA client. Before you start voice tests,
configure a UDP listening service on the NQA server. For more information about UDP listening service
configuration, see “Configuring the NQA server.”
Configuring voice tests
To configure voice tests:
To do… Use the command… Remarks
1. Enter system view.
system-view —
2. Enter NQA test group view.
nqa entry admin-name operation-
tag
—
3. Configure the test type as
voice and enter test type view.
type voice Required.
4. Configure the destination
address of voice probe
packets.
destination ip ip-address
Required.
By default, no destination IP
address is configured for a test
operation.
The destination IP address must be
the same as that of the listening
service on the NQA server.
5. Configure the destination port
of voice probe packets.
destination port port-number
Required.
By default, no destination port
number is configured.
The destination port must be the
same as that of the listening
service on the NQA server.
6. Configure the codec type.
codec-type { g711a | g711u |
g729a }
Optional.
By default, the codec type is
G.711 A-law.
7. Configure the advantage
factor for calculating MOS
and ICPIF values.
advantage-factor factor
Optional.
By default, the advantage factor is
0.
8. Specify the source IP address
of probe packets.
source ip ip-address
Optional.
By default, no source IP address is
specified.
The source IP address must be the
IP address of a local interface.
The local interface must be up;
otherwise, no probe packets can
be sent out.
9. Specify the source port
number of probe packets.
source port port-number
Optional.
By default, no source port number
is specified.
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