GPRS (UMTS) HowTo

It is possible to use the Simpad with Opie 1.2 for Internet browsing. You need an supported GPRS/UMTS PCMCIA Card, an Browser and a SIM Card. The following example uses an N24 Card (via Vodafone) and a GlobeTrotter GPRS Card.

You have to create 5 Files

- chat.n24-pin (set you PIN here)

- chat.n24 (set you APN here)

- peers/n24-pin

- peers/n24

- call.n24 (start script)

chat.n24-pin

TIMEOUT 5
ECHO ON
"" 'ATZ'
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 5
OK      'ATQ0 V1 S0=0 &C1 &D2 +FCLASS=0'
OK      'AT+CPIN=YOUR-PIN'
TIMEOUT 5
CONNECT ""

chat.n24

TIMEOUT 5
ECHO ON
"" 'ATZ'
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 45
OK      'ATQ0 V1 S0=0 &C1 &D2 +FCLASS=0'
OK      'AT+CGDCONT=1,"IP","event.vodafone.de"'
OK      'ATD *99#'
TIMEOUT 30
CONNECT ""

peers/n24-pin

debug
noauth
connect '/usr/sbin/chat -v -f /etc/ppp/chat.n24-pin'
usepeerdns
/dev/ttyS00 460800
defaultroute
nodetach
lcp-echo-failure 0
crtscts

peers/n24

debug
connect '/usr/sbin/chat -v -f /etc/ppp/chat.n24'
usepeerdns
/dev/ttyS00 460800
defaultroute
persist
nodetach
lcp-echo-failure 0
crtscts
novj
noipdefault
user vodafone
password vodafone
modem
noauth

start script

#!/bin/sh
#
# simple init and call script
# mrhbit 08/2010 @fcco.de
#

# modules
modprobe ppp_generic
modprobe ppp_async

# device
mknod /dev/ttyS00 c 4 64

echo "exec: pppd call n24-pin ..."
pppd call n24-pin
echo "wait some seconds ..."
sleep 5
echo "exec: pppd call n24 ..."
pppd call n24

some links

http://blog.chinaunix.net/u1/47395/showart_2201247.html # ppp_async

http://www.pharscape.org/GlobeTrotterGPRShowto.html # Modem

http://ubuntuforums.org/showthread.php?t=696112 # ppp howto

http://pcmcia-cs.sourceforge.net/ftp/doc/PCMCIA-HOWTO-3.html # cards