#!/bin/sh
#---------------------------------------------------------------------------
#
#	tell called and calling numbers answer script for i4b isdnd
#	-----------------------------------------------------------
#
#	$Id: tell,v 1.3 1998/12/18 17:17:57 hm Exp $
#
#	last edit-date: [Fri Dec 18 18:05:36 1998]
#
#---------------------------------------------------------------------------
VARDIR=/var/isdn
LIBDIR=/usr/local/lib/isdn
LOGFILE=/tmp/answer.log
NCALLFILE=$VARDIR/ncall
DATE=`date +%d%H`
DF=0
dF=0
sF=0

set -- `getopt D:d:s: $*`

if test $? != 0
then
	echo 'Usage: answer -D device -d destination -s source'
	exit 1
fi

for i
do
	case "$i"
	in
		-D)
			DEVICE=$2
			DF=1
			shift
			shift
			;;
		-d)
			DEST=$2
			dF=1
			shift
			shift
			;;
		-s)
			SRC=$2
			sF=1
			shift
			shift
			;;
		--)
			shift
			break
			;;
	esac
done

echo "" >>$LOGFILE

if [ $DF -eq 0 -o $dF -eq 0 -o $sF -eq 0 ]
then
	echo 'Usage: answer -D device -d destination -s source'
	exit 1
fi	

echo "answer: device $DEVICE destination $DEST source $SRC " >>$LOGFILE

if [ -f $LIBDIR/beep.g711a ]
then
	dd of=$DEVICE if=$LIBDIR/beep.g711a bs=2k >/dev/null 2>&1
fi

# tell the caller the number he is calling from

POS=1
LENGTH=`expr $SRC : '.*'`

while :
do
	DIGIT=`echo $SRC | cut -c $POS`
	/bin/dd of=$DEVICE if=$LIBDIR/$DIGIT.g711a bs=2k >/dev/null 2>&1
	POS=`expr $POS + 1`
	if [ $POS -gt $LENGTH ]
	then
		break
	fi
done

if [ -f $LIBDIR/beep.g711a ]
then
	dd of=$DEVICE if=$LIBDIR/beep.g711a bs=2k >/dev/null 2>&1
fi