We have Ubuntu Lts 12 x64
and OPENVOX 400P GSM card
what we want is to setup a SMS server system where our office users will be able to send and receive messages like EASYSMS android app that works on mobiles ! check this out and you will see what we really looking for to use in our office.
we will be using our own simcard with OpenVox 400P GSM module
we would like it to be opensource solution