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040 7448 329657 (04.97) PC-SW 4.5
C H A P T E R 5 : C O M M A N D S
AU(DIO)
Description:
The AUDIO command selects the mode for the audio enco-
ding. If this mode is not supported by the far end (partner), the
two terminals agree on a mode (capability exchange) as per
CCITT Recommendation H.221.
Note: The GSM mode is only supported between AVT units.
Command:
^B
AU
/
Parameter 1<cr>
Response:
^P
AU <cr>
- Command executed -
^P
AU <^N>
1
<^N>
1
<cr>
- Syntax error -
^P
AU <^N>
1
<^N>
2
<cr>
- Command not executable -
Parameter 1:
Selection of the coding algorithm
ALAW
selects the coding algorithm CCITT G.711
a
/ a-law
a
CCITT G.711: Audio encoding algorithm with a bandwidth of 3.1 kHz and a transmission
rate of 56 or 64 kbit/s.
ULAW
selects the coding algorithm CCITT G.711
a
/
µ
-law
M2
selects the coding algorithm CCITT G.722
b
at 56 kbit/s
b
CCITT G.722: Audio encoding algorithm with a bandwidth of 7 kHz and a transmission rate
of 48 or 56 kbit/s.
M3
selects the coding algorithm CCITT G.722
b
at 48 kbit/s
GSM
selects the coding algorithm Philips GSM
c
c
Philips GSM: Audio encoding algorithm with a bandwidth of 3.1 kHz and a transmission rate
of 16 kbit/s. This algorithm is not standardised and can therefore only be used between AVT
units.
OFF
switches the audio channel off
BY(PASS)
Description:
This command switches the test loops on and off.
Command:
^B
BY
/
Parameter 1<cr>
Response:
^P
BY <cr>
- Command executed -
^P
BY <^N>
1
<^N>
1
<cr>
- Syntax error -
^P
BY <^N>
1
<^N>
2
<cr>
- Comm. not executable -
Parameter 1:
Selection of the loop
OFF
No loop
LOC
Loop at the active interface for the local side
REM
Loop at the active interface for the remote end
TS16
a
a
not yet available
Loop of the signal in timeslot 16
AUD
a
Audio loop
VID
a
Video loop
VCODEC
a
Videocodec
Содержание Titan
Страница 1: ...TITAN Videocodec ISDN Videocodec Operator Manual ...
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