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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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