POS terminal to sim900

[pumper]

hi
for a project i need to connect a pos terminal to a sim900 gsm module insted od pstn network.
any sujjestion or experience?

[Wilksey]

Depends what you are doing with the SIM900, the AT Command Guide is your friend here!

If you are using Circuit Switched Data then you can use ATD ###### (where ## = Data Number)
If you are using packet switched then you can use the built in TCP/IP stack.

If, you require authentication, then you can hook it up to Windows / Linux, you should be able to find an appropriate driver, and use PPP.

[pumper]

 thanks wilsksey
if I understand you mean i can plug a pstn pos to a sim900 module insted of analouge line without  any problem?