fbf08005d7
The left out parts (which have not been installed by ISDN4BSD on NetBSD anyway), may be added as pkgs later (if demand exists).
98 lines
3.0 KiB
Groff
98 lines
3.0 KiB
Groff
.\"
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.\" Copyright (c) 1997, 1999 Hellmuth Michaelis. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $Id: isdntelctl.8,v 1.1.1.1 2001/01/06 13:00:34 martin Exp $
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.\"
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.\" $FreeBSD$
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.\"
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.\" last edit-date: [Mon Dec 13 23:06:45 1999]
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.\"
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.Dd April 21, 1999
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.Dt ISDNTELCTL 8
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.Os
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.Sh NAME
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.Nm isdntelctl
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.Nd control isdn4bsd telephone sound format conversion
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.Sh SYNOPSIS
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.Nm
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.Op Fl c
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.Op Fl g
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.Op Fl u Ar unit
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.Op Fl A
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.Op Fl U
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.Op Fl N
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.Sh DESCRIPTION
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.Nm isdntelctl
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is part of the isdn4bsd package and is used to configure the sound format
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conversion facilities of the /dev/i4btel interfaces.
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.Pp
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The following options are available:
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.Bl -tag -width Ds
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.It Fl c
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Clear the telephone input queue.
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.It Fl g
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Get the sound format currently in use.
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.It Fl u
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Set the /dev/i4btel unit number. The default value is zero to access
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device /dev/i4btel0.
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.It Fl A
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Do A-law (ISDN line) -> u-law (userland) conversion.
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.It Fl U
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Do u-law (ISDN line) -> A-law (userland) conversion.
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.It Fl N
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Set sound conversion to do no format conversion.
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.El
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.Pp
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The telephony data stream comes out of the line in a bit-reversed format,
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so the
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.Xr i4btel 4
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driver does the bit-reversion process in any case.
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.Pp
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Additionally, the user can specify to do A-law to u-law, u-law to A-law
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or no conversion at all in the i4btel driver by using the
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.Nm
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utility.
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.Pp
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.Sh FILES
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/dev/i4btel<n>
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.Sh STANDARDS
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A-Law and u-Law are specified in ITU Recommendation G.711.
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.Sh EXAMPLES
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The command:
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.Bd -literal -offset indent
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isdntelctl -g
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.Ed
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.Pp
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displays the currently used sound format for device /dev/i4btel0.
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.Sh SEE ALSO
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.Xr i4btel 4
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.Xr g711conv 1
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.Xr isdnd 8
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.Xr isdnd.rc 5
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.Sh AUTHOR
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The
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.Nm
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utility and this manpage were written by
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.An Hellmuth Michaelis Aq hm@kts.org .
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