GSM modem for real time data transmission

[basemgergawy]

good morning every body

i'm trying to use my mobile phone as modem for real time data transmission

i have implement data transmission system using SMS but the data is not in real time because the SMS is firstly routed and stored in Meaasga Service Center (MSC) then MSC sends it to the destination . Now i'm trying to establish a call but insted of sending voice call i want to send packets of data

is it possible???
if yes please tell me the AT commands corresponding for data transmission

many thanks

 

[gorkin]

You can use CSD, like analog modems or GPRS.
Gorkin

 

[basemgergawy]

Many thanks Gorkin for your replay

BUt if you have more information about CSD please inform me

i found only that CSD means "Circuit Switched Data" but it's not AT command

 

[gorkin]

Check in search and You find lot S-i-e-m-e-n-s mobile AT manuals, I have experience with S45 mobile, C45 function very well too.

C-MAN have more experience with severals mobile from different manufatures, him help-me much old times...

Gorkin!