User manual

Device Configuration /
VoIP
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BEC 9800VN User Manual
Media
Media offers for kinds of codec, G.711 u-law, G.711 A-law, G.729, G.726, from greatest to lowest in
priority.
Phone: Select to set the following configurations for Phone 1 or Phone2. When phone1 is selected,
the following set media codec will be applied to phone1.
 G.711u-Law: It is a basic non-compressed encoder and decoder technique. μ-LAW uses pulse
code modulation (PCM) encoder and decoder to convert 14-bit linear sample.
 G.711A-LAW: It is a basic non-compressed encoder and decoder technique. A-LAW uses
pulse code modulation (PCM) encoder and decoder to convert 13-bit linear sample into 8-bit
value.
 G.729: It is used to encoder and decoder voice information into a single packet which reduces
the bandwidth consumption.
 G.726: It is an ITU-T ADPCM speech codec standard covering the transmission of voice at rates
of 32kbit/s.