[
键入文字
]
33
/
54
Audio
Setting
Field
Name
Explanation
First
Codec
The
first
codec
choice:
G.711A/U,
G.722,
G.723.1,
G.726
‐
32,
G.729AB
Second
Codec
The
second
codec
choice:
G.711A/U,
G.722,
G.723.1,
G.726
‐
32,
G.729AB,
None
Third
Codec
The
third
codec
choice:
G.711A/U,
G.722,
G.723.1,
G.726
‐
32,
G.729AB,
None
Fourth
Codec
The
forth
codec
choice:
G.711A/U,
G.722,
G.723.1,
G.726
‐
32,
G.729AB,
None
DTMF
Payload
Type
The
RTP
Payload
type
that
indicates
DTMF.
Default
is
101
Default
Ring
Type
Ring
Sound
–
There
are
9
standard
types
and
3
User
types.
G.729AB
Payload
Length
G.729AB
Payload
Length
–
Adjusts
from
10
–
60
mSec.
Tone
Standard
Configure
tone
standard
area.
G.722
Timestamps
Choices
are
160/20ms
or
320/20ms.
G.723.1
Bit
Rate
Choices
are
5.3kb/s
or
6.3kb/s.
Speakerphone
Volume
Set
the
speaker
calls
the
volume
level.
MIC
Input
Volume
Set
the
MIC
calls
the
volume
level.
Broadcast
Output
Volume
Set
the
broadcast
the
output
volume
level.
Signal
Tone
Volume
Set
the
audio
signal
the
output
volume
level.
Enable
VAD
Enable
or
disable
Voice
Activity
Detection
(VAD).
If
VAD
is
enabled,
G729
Payload
length
cannot
be
set
greater
than
20
mSec.