GSM data call (Circuit Switched Data)

Official Hardware Retired GSM Shield
1

I'd like to make a GSM data call (Circuit Switched Data). I wasn't able to find any examples. However, it should be possible, as I found those lines in call.cpp:

      CALL_INCOM_DATA_AUTH        - incoming data call - authorized
      CALL_INCOM_DATA_NOT_AUTH    - incoming data call - not authorized  
      CALL_ACTIVE_DATA            - active data call

Could someone please provide me with a simple example?

2

fredgk:
I'd like to make a GSM data call.

Do you mean that you would like to send an SMS? Try the GSM_SMS class:

http://arduino.cc/en/Reference/GSM

3

I mean Circuit Switched Data (Circuit Switched Data - Wikipedia)

4

fredgk:
I mean Circuit Switched Data (Circuit Switched Data - Wikipedia)

Looks like you want the AT+QICSGP command to switch from GPRS to CSD.

See section 7.2.17:
http://www.soyter.pl/system/files/M10_AT_Commands_Manual_V3.2_0.pdf