Making GPRS/pppd connection.

Bartlomiej Zdanowski AutoGuard Ltd. b.zdanowski at
Thu Sep 6 07:29:33 CEST 2007

Hi Community.

Did anyone make successful GPRS connection according to the wiki? I got 
some errors after a few first AT commands. Enabling debug with

pppd debug call gprs

pppd shows series of lines

[LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x309ee493> <pcomp> <accomp>]

and then

tcsetattr: Invalid argument (line 964)

pppd hangups and no connections is made. I tried to stop gsmd, restart 
gsmd, kill dialer and other software which might be disturbing gsm but 
no success. I have a card with pin checking but I added
and it works elsewhere correcly. Minor information is that I'm using 
Orange PL (polish) sim card. I didn't try other cards.
Does anybody know how to run this machinery? Please help.

*Bartlomiej Zdanowski*
Product Research & Development Department
AutoGuard S.A.

Place of registration: Regional Court for the Capital City of Warsaw
Registration no.: 0000287629
Share capital: 1 059 000 PLN
Polish VAT and tax ID no.: PL1132219747
Omulewska 27 street
04-128 Warsaw
phone +48 22 611 69 23 <>
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