Интерактивная система просмотра системных руководств (man-ов)
isdntelctl (8)
>> isdntelctl (8) ( FreeBSD man: Команды системного администрирования )
BSD mandoc
NAME
isdntelctl
- control isdn4bsd telephone sound format conversion
SYNOPSIS
[-c
]
[-g
]
[-u unit
]
[-A
]
[-U
]
[-N
]
DESCRIPTION
The
utility
is part of the isdn4bsd package and is used to configure the sound format
conversion facilities of the /dev/i4btel interfaces.
The following options are available:
- -c
-
Clear the telephone input queue.
- -g
-
Get the sound format currently in use.
- -u
-
Set the /dev/i4btel unit number.
The default value is zero to access
device /dev/i4btel0.
- -A
-
Do A-law (ISDN line) -> u-law (userland) conversion.
- -U
-
Do u-law (ISDN line) -> A-law (userland) conversion.
- -N
-
Set sound conversion to do no format conversion.
The telephony data stream comes out of the line in a bit-reversed format,
so the
i4btel(4)
driver does the bit-reversion process in any case.
Additionally, the user can specify to do A-law to u-law, u-law to A-law
or no conversion at all in the i4btel driver by using the
utility.
FILES
/dev/i4btel<n>
EXAMPLES
The command:
isdntelctl -g
displays the currently used sound format for device /dev/i4btel0.
SEE ALSO
g711conv(1),
i4btel(4),
isdnd.rc5,
isdnd(8)
STANDARDS
A-Law and u-Law are specified in ITU Recommendation G.711.
AUTHORS
The
utility and this manpage were written by
An Hellmuth Michaelis Aq hm@kts.org .
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- FILES
-
- EXAMPLES
-
- SEE ALSO
-
- STANDARDS
-
- AUTHORS
-
