Hi, i am italian but based in thailand, i maked a lot of customization for linphone project, and connect it to asterisk/freesqtich-a2billing system for balance and billing. If you want more info or a free demo just contact to me, can meet here or on skype, i am on line on thailand work time, but if you let me message with the time for appointment i will make myeself available for this. Best Regards