587
Figure 606 Configuring coding parameters of the local number
Table 226 Configuration items
Item Descri
tion
Codec with the First Priority
Specify a codec
with the first
priority.
Specify the codecs and their priority levels. The available
codes are:
• g711alaw—G.711 A-law codec (defining the pulse code
modulation technology), requiring a bandwidth of 64
kbps, usually adopted in Europe.
• g711ulaw—G.711-law codec, requiring a bandwidth of
64 kbps, usually adopted in North America and Japan.
• g723r53—G.723.1 Annex A codec, requiring a
bandwidth of 5.3 kbps.
• g723r63—G.723.1 Annex A codec, requiring a
bandwidth of 6.3 kbps.
• g726r16—G.726 Annex A codec. It uses the ADPCM
technology, requiring a bandwidth of 16 kbps.
• g726r24—G.726 Annex A codec. It uses ADPCM,
requiring a bandwidth of 24 kbps.
• g726r32—G.726 Annex A codec. It uses ADPCM,
requiring a bandwidth of 32 kbps.
• g726r40—G.726 Annex A codec. It uses ADPCM,
requiring a bandwidth of 40 kbps.
• g729a—G.729 Annex A codec (a simplified version of
G.729), requiring a bandwidth of 8 kbps.
• g729br8—G.729 Annex B (the voice compression
technology using conjugate algebraic-code-excited
linear-prediction), requiring a bandwidth of 8 kbps.
• g729r8—G.729 (the voice compression technology
using conjugate algebraic-code-excited
linear-prediction), requiring a bandwidth of 8 kbps.
Codec with the Second
Priority
Specify a codec
with the second
priority.
Codec with the Third
Priority
Specify a codec
with the third
priority.
Codec with the Lowest
Priority
Specify a codec
with the lowest
priority.
Packet Assembly Interval of
G711
Specify the packet assembly interval for g711alaw and g711ulaw codecs.
Packet Assembly Interval of
G723
Specify the packet assembly interval for g723r53 and g723r63 codecs.
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