OLinuxino A13 with MOD GSM

[bimodh]

Hi,

I have an OLINUXINO A13 Board Loaded with Linux OS as given here.(https://www.olimex.com/forum/index.php?topic=537.0)

I recently purchased a MOD GSM Also. And i connected my MOD GSM with A13 via UEXT. Now, how can i access it inside?

How to access the MOD GSM as a Serial Port, or how can i send the AT Commands from Olinuxino A13 to MOD GSM?