#!/bin/sh
# 
# $Id: gprs-connect-chat,v 1.2 2004/02/02 23:19:28 mcfrisk Exp $
#
# File: 
# gprs-connect-chat
#
# Description: 
# chat script to open Radiolinjas GPRS service with GPRS phones. If ppp 
# negotiation stalls, try restarting the phone. To try with other GPRS 
# operator setting, change the PDP contex setting. The settings work with 
# most Ericsson models, but Nokia 8310 and 30 do not support QoS parameters 
# with AT commands, so just delete those lines and it'll work.
#
# Set PDP context CID=1, protocol=IP, APN=internet:
# AT+CGDCONT=1,"IP","internet","",0,0
#
# Set CID=1 QoS requirements from the network, not supported by Nokia:
# AT+CGQREQ=1,0,0,0,0,0
#
# Set CID=1 minimum acceptable QoS parameters, not supported by Nokia:
# AT+CGQMIN=1,0,0,0,0,0
#
# 'Call' CID=1 (activate PDP context one, perform GPRS attach):
# ATD*99***1#
#
# Some phones like the Orange SPV (yes, the Microsoft Smartphone) use this 
# dial string to start GPRS connection:
# ATD*99#
#
# The actual chat script:
exec chat 						\
	TIMEOUT		5				\
	ECHO 		ON				\
	ABORT		'\nBUSY\r'			\
	ABORT		'\nERROR\r'			\
	ABORT		'\nNO ANSWER\r'			\
	ABORT		'\nNO CARRIER\r'		\
	ABORT		'\nNO DIALTONE\r'		\
	ABORT		'\nRINGING\r\n\r\nRINGING\r'	\
	''		\rAT				\
	TIMEOUT		12				\
	SAY		"Press CTRL-C to close the connection at any stage!"	\
	SAY		"\ndefining PDP context...\n"	\
	OK		ATH				\
	OK		ATE1				\
	OK		'AT+CGDCONT=1,"IP","internet.nw","",0,0'	\
	OK		ATD*99#				\
	TIMEOUT		22				\
	SAY		"\nwaiting for connect...\n"	\
	CONNECT		""				\
	SAY		"\nConnected." \
	SAY		"\nIf the following ppp negotiations fail,\n"	\
	SAY		"try restarting the phone.\n"