GPRS activation


#1

hi

i have a gsm/gprs module (Wavecom made Q2686). my basic requirement is to send data from one module to another. now i am sending the data via sms using the AT commands through the microcontroller. since i have to send large amount data, the sms process is very time consuming. So i am looking for GPRS. let anyone tell me about the basic requirements and the AT command flow? please help…

thanks
Roy


#2

Probably also very expensive :question: :open_mouth:

The most basic thing that you need to understand is that GPRS is a packet-based transport - that’s what the ‘P’ stands for!

I guess that the specific packet-based transport that you intend using is IP (Internet Protocol) - yes?

In that case, you will need (at least) a basic undrstanding of IP networking - this is not specific to GPRS or Sierra Wireless, so any general text will do; eg,
https://forum.sierrawireless.com/t/connection-from-a-specific-port/2998/8
https://forum.sierrawireless.com/t/i-want-to-send-simple-string-using-ftp/1278/9

The biggest problem with IP in the context of GPRS is that you only get a Private IP address - unless you specifically pay for a “premium” service with a Public IP address.
This means that it is not possible to communicate directly between GPRS devices; eg, see:
https://forum.sierrawireless.com/t/how-could-i-set-a-destination-ip-address-private/1597/3
https://forum.sierrawireless.com/t/fastrack-supreme-to-hyperterminal-over-network/2714/2

There is an Application Note which describes that.


#3

thank you :slight_smile: