Chapter 4 Management through the Web
Screens
TC1920 Rev 1.3 User Manual
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Port Settings
Codecs may be assigned independently to each port.
Figure 4-29 Telephone/Analog Port Codec Settings
Codec Settings
Bit Rate
Displays the bit rate of the codec.
VAD
Voice Activity Detection separates conversational
speech and silence. It is used to reduce bandwidth
usage during idle periods of a conversation. Comfort
Noise will be generated to fill the silence in a
transmission.
PTime
Packetization Time is the time length of each voice
packet.
Mapped Payload
Configure the dynamic variable payload of the codec.
G.711 µ-law, G.711 A-Law, G.726-32, G.726-16, and
G.729A are codecs that are assigned with static
payload, so the configuration is grayed out.
