Group2Call.com持导入你的本地联系人名单，然后可以以你自己设定好的群组进行免费短信群发，另外值得高兴的是它支持将声音文件一同发出，这是许多免费服务所没有的。这个站打开的速度有点小慢！
In 2004 a small team of teachers, business analysts and technical developers got together to find a new way to increase communication between schools and parents. By using the latest technology this team was able to design a new service that allowed teachers to broadcast messages to parents using voice and SMS.
Our service has grown over the years to provide mass communication services to many (large or small) businesses and non profit organizations. We provide all sorts of mass messaging services such as school alerts and notifications, sports team alerts, religious messages and congregation events, customer registration and news updates, entertainment event updates, neighborhood watch alerts, weather alerts, crime alerts and much more. We are also a preferred vendor for the NOAA (National Oceanic Atmospheric Administration) where we are currently working on a project to provide voice and SMS alerts in case of any national disaster.
Our data centers are currently located in Ohio. We chose the Ohio region because it may be less susceptible to uncontrolled events (natural disasters) which may pose a threat to the continuity of our critical business services.