GPRS/GSM connection


#1

Hello,

i have a speed problem with my Q2686. I use linux to connect to t-mobile (german) via a ppp connection.
thats my logfile:

AT+CGDCONT=1,“IP”,“internet.t-d1.de
OK

AT+CGQREQ=1,1,4,5,2,31
OK

AT+CGQREQ?
+CGQREQ: 1,1,4,5,2,31
OK
AT+CBST=75,0,0
OK
AT+ILRR=1
OK
AT+ILRR=?
+ILRR: (0,1)
OK
AT+ILRR?
+ILRR: 1
OK
AT+WGPRS=?
+WGPRS: (0-7),(0-1),(1-4),(2,8,10)
OK

AT+WGPRS?
+WGPRS: 0,1
+WGPRS: 1,0
+WGPRS: 2,0,1
+WGPRS: 3,0
+WGPRS: 4,10
+WGPRS: 5,0
+WGPRS: 6,0
+WGPRS: 7,0
OK

ATDT99**1#
CONNECT 115200

it says 115200 but i think that this is a lie :wink:
it takes a minute to load a 1,1KB index.html file :confused:

can anyone give me a hint?

MfG Sven


#2

Hiya,

The CONNECT 115200 message is indicating that the serial connection between the modem and the PC is running at 115200 baud, NOT that the connection between the modem and the ISP is running at that speed.

Theroretical maximum for GPRS is around 44kbits/sec. If you have got a low signal, or the network is busy, you won’t get anywhere near that speed.

Try downloading the same html file using a Mobile Phone (eg a smartphone or PDA phone etc) using the same SIM card and see how long it takes.

ciao, Dave