3.6 Voice Setting
User could define some parameters about the voice in this voice-setting page.
(see figure 3.7)
Figure 3.7: Voice Setting
Codec Priority It’s for the codec setting. User could use the codec, which
they want by the setting.
Frame Size It’s the packet size for all codec. It will take more bandwidth if
user configure the packet size in the minimum value.
G723 Silence Suppression For the VAD and CNG function support.
Volume To adjust the gain of the output, input and dtmf.
Echo Canceller To enable the echo cancellation function.
Jitter Buffer To adjust the Jitter Buffer size to avoid the packets losing.
A large jitter buffer causes increase in the delay and decreases the packet loss.
A small jitter buffer decreases the delay but increases the packet loss. The size
of the jitter buffer depends on the condition of the network, which varies with
time. Typically the packet loss should be less than 10% for a good quality of
speech.
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