#!/bin/sh
#
# This is ppp-on-dialer-pap.
# The script will talk to your modem via AT commands.
# To manually log in use "cu -l /dev/modem dir" and terminate with
# "~." To use minicom. Run minicom -s, go to "Serial port setup" and set the
# serial device, go to "Modem and dialing" and set the initstring to nothing.
# If you use minicom then terminate with crtl-a q
# Note: only minicom can terminate without re-setting (crtl-a q). Only
# with minicom you can then run manually "pppd -d /dev/modem 38400".
#
# Note: you can not use this script stand alone it needs to be called
# from pppd. 
# 
# The script below is specifically for pap authentication. It does
# not expect a login prompt.
#
# The telephone number may be given as argument to the script or
# via environment variables.
if [ -n "$1" ]; then
	TELEPHONE="$1"
	export TELEPHONE
fi
if [ -z "$TELEPHONE" ]; then
	echo "ERROR: dialer, TELEPHONE not set" 1>&2
	exit 1
fi
#
# to debug the conversation with your modem use: exec chat -v \
exec chat \
	TIMEOUT		3				\
	ABORT		'\nBUSY\r'			\
	ABORT		'\nNO ANSWER\r'			\
	ABORT		'\nRINGING\r\n\r\nRINGING\r'	\
	''		\rAT				\
	'OK-+++\c-OK'	ATH0				\
	TIMEOUT		30				\
	OK		ATDT$TELEPHONE			\
	CONNECT		''