this utility allows you to send SMS to any phone number from any name with any content (for example send notification about changed password via SMS)
(?) is this free? unfortunately this program is just utility that works on API of big sms gateway, and this gateway takes money from every sms that you send
(?) does it support any other languages besides English? yes, it is supports unicode so program works both in English and in Russian, Chinese and other languages
(?) can I get a ban? yes, your account can get a ban from Vonage if you violate the terms of use
(?) can I use it on linux? yes you can, the utility is not demanding on the system, and the functions are adapted to both systems