.\"
.\" Copyright (c) 1997, 1999 Hellmuth Michaelis. All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\"	$Id: isdntest.8,v 1.10 1999/12/13 22:11:55 hm Exp $
.\"
.\" $FreeBSD$
.\"
.\"	last edit-date: [Mon Dec 13 23:07:23 1999]
.\"
.Dd December 10, 1999
.Dt ISDNTEST 8
.Os
.Sh NAME
.Nm isdntest
.Nd isdn4bsd debugging and verification tool
.Sh SYNOPSIS
.Nm
.Op Fl c Ar unit
.Op Fl d Ar level
.Op Fl i Ar number
.Op Fl h
.Op Fl o Ar number
.Op Fl t Ar num
.Op Fl w
.Sh DESCRIPTION
.Nm
is part of the isdn4bsd package and may be used as a stimulation tool
for debugging the isdn4bsd kernel functionality.
.Pp
NOTE: 
.Nm Isdntest
must be run
.Em instead
of the
.Xr isdnd 8
daemon and can not be used while the daemon runs.
.Pp
The following options are available:
.Bl -tag -width Ds
.It Fl c
Use controller unit number for test.
.It Fl d
Set the debugging level
.It Fl h
Use HDLC as the B channel layer 1 protocol instead of no protocol.
.It Fl i
Use number to verify the incoming number.
.It Fl o
Use number as the outgoing number to dial.
.It Fl t
Set number of times the test pattern on the B-channel is exchanged
.It Fl w
Wait for keyboard input for terminating the call.
.El
.Pp
The
.Nm
utility is currently of not much use for end users, it is primarily a debugging
tool for development and is part of the release in the hope, that someone
enhances it as a real self test and setup-verification tool!
.Pp
.Nm Isdntest 
does almost no error checking and error recovery, so unexpected
hangs or crashes may occur.

.Sh EXAMPLES
For the following example, it is assumed that a machine with isdn4bsd 
installed is connected to an S0 bus and that one of the valid MSN's (MSN = Multiple Subscriber Number
= telephone number) on this bus is
.Em 42 .
The 
.Xr isdnd 8
.Em must
not currently running on that machine! Executing:
.Bd -literal -offset indent
isdntest -i 42 -o 42
.Ed
.Pp
will setup an outgoing call from that machine to itself, connect to itself
and disconnect after 5 seconds.
.Nm Isdntest
has to be finished by the user by entering Control-C.
.Pp
.Sh FILES
/dev/i4b

.Sh AUTHORS
The
.Nm
utility and this manpage were written by 
.An Hellmuth Michaelis Aq hm@kts.org .