Linux –> Nokia 6820 –> Matrix Indosat

Akhirnya, bisa juga setelah mengikuti petunjuk disini:
[ Linux – Nokia 6820 ]

Jangan lupa ganti internet.com dengan satelindogprs.com.
Juga, di Fedora Core 3 Anda perlu mengganti /dev/input/ttyACM0 dengan /dev/ttyACM0

Selamat mencoba.

5 thoughts on “Linux –> Nokia 6820 –> Matrix Indosat”

The website seems to have gone offline, so here’s a copy of it. Hopefully the author doesn’t mind.

Nokia 6820 + Internet

Recipe for getting Nokia 6820 working with Linux laptop
and CA-42 USB cable:

/etc/ppp/peers/rogers

/dev/input/ttyACM0 115200 crtscts debug usepeerdns nobsdcomp noipdefault
connect '/usr/sbin/chat -v -f /etc/ppp/peers/rogers.chat'

/etc/ppp/peers/rogers.chat

ABORT "NO CARRIER"
ABORT "ERROR"
ABORT "NO ANSWER"
ABORT "BUSY"
"" "ATZ"
OK "ATS0=0"
OK "AT&FV1&D2&S0&C1S0=0"
OK "ATS7=60+DS=3,0;&K3"
OK "AT+CBST=14,0,1;+CHSN=2,0,0,0"
OK 'AT+CGDCONT=1,"IP","internet.com",,0,0'
OK "ATD*99#"
CONNECT

CLI:

$ pppd call rogers
..
$ killall pppd

I don’t seem to have the BSD compression module (bsd_comp) in my kernel, so
I need nobsdcomp. usepeerdns and noipdefault seem to be necessary
to get the LCP authentication to work. debug puts some information
in /var/log/messages (not sure what syslog level; info maybe) and
PPP logs in level daemon.debug – I had to add that to syslogd.conf.
I didn’t get this working till I read Greg’s page – I had tried noipdefault
after trying to see what was different in Windows but hadn’t tried
usepeerdns, and the PPP session would fail with
Protocol-Reject and a message on the phone “subscribe to GPRS first” (same
as if the APN setting is incorrect)

CGDCONT command overrides the APN code from the phone. This line is only
necessary if you use more than one APN. AT codes are documented
on forum.nokia.com.

The phone shows up as USB Vendor=0421 ProdID=0802. On one
system I added “alias char-major-166 acm” to /etc/modules.conf, and
I think I had to run some makedev command to create /dev/input/ttyACM0.
I also copied it into /dev with a link to /dev/modem for the benefit
of minicom, which didn’t seem happy to have a device not in /dev/.

You can talk to the modem with minicom and enter AT codes – there
are lots. Things like asking for the signal strength and
cell ID. Not everything documented in the “Nokia GSM connectivity
terminal AT command guide” works, though – addressbook commands didn’t work
for me.

(the CBST modem codes set the speed to 14.4k. But GPRS uses up to 8 timeslots
so you should get up to 8*14.4 = 115k, more with EDGE …)

Kernel Tuning

It may be advantageous to set /proc/sys/net/ipv4/tcp_keepalive_time to
1200 (20 minutes). Also possibly reduce txqueuelen in ppp0 ifconfig (must check..)