How to GSM network connect?

Hi ,
I have deployed asterisk 1.4 , and i want to connect it through the TDM400p CARD to the GSM network, how can i do ? is that a particular configuration in a zapata.conf file ?


unless you have a asterisk GSM card.

thank’s Zhu ,
please can u recommand me one or two most used references?
i mean some which doesn’t have problem with driver and config issu.
what do you think about BNXgsm card series.

    thank's for ur help

please refer this:
i tested Junghanns.NET card, it is ok. you have to dig more.