Audio input
In 2, Line
In 1, Microphone
Dynamic
Condenser
Supervision
In 1 + In 2, Line
Microphone gain
0
1.5
3
4.5
6
7.5
9
10.5
12
13.5
15
16.5
18
19.5
21
22.5
dB
Line gain
0
1.5
3
4.5
6
7.5
9
10.5
12
13.5
15
16.5
18
19.5
21
22.5
dB
Loop In to Out
Yes
No
Pilot tone super.
Yes
No
Audio output
Output level
mute
-70
-65
-60
-55
-50
-46
-42
-38
-34
-30
-27
-24
-21
-19
-17
-15
-13
-11
-9
-7
-5
-3
-2
-1
0
dB
Output delay
mSec.
Audio format
Encoding
MPEG1-L3/ 48 kHz (MP3)
MPEG1-L3/ 44.1 kHz (MP3)
MPEG1-L3/ 32 kHz (MP3)
MPEG1-L2/ 24 kHz
MPEG1-L2/ 22.05 kHz
MPEG1-L2/ 16 kHz
uLaw / 24 kHz (G.711)
uLaw / 8 kHz (G.711)
aLaw / 24 kHz (G.711)
aLaw / 8 kHz (G.711)
PCM / 24 kHz (16bit)
PCM / 8 kHz (16bit)
MP3 Encoding quality
0 Lowest
1
2
3
4
5
6
7 Highest
Audio coding
&LSetup(3,"%s",486,B,0,"MPEG is always Half Duplex"); &LSetup(3,"%s",486,B,1,"-->"); &LSetup(3,"%s",486,B,2,"-->"); &LSetup(3,"%s",486,B,3,"-->"); &LSetup(3,"%s",486,B,4,"-->"); &LSetup(3,"%s",486,B,5,"-->");