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ISDNTELCTL (8) | System administration commands and daemons | Unix Manual Pages | :man▋
NAME
isdntelctl - control isdn4bsd telephone sound format conversion
CONTENTS
Synopsis
Description
Files
Examples
See Also
Standards
Authors
SYNOPSIS
isdntelctl [-c] [-g] [-u unit] [-A] [-U] [-N]
DESCRIPTION
The isdntelctl 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 isdntelctl 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.rc(5), isdnd(8)
STANDARDS
AUTHORS
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