“你好世界”是移动拨号器可以被用来拨打VoIP电话。
"Hello world" can be used on the compatible Android phone sets to make VoIP calls using a service provider. It allows international voice calls over WiFi or 3G/4G network. Service provider who bundled this application with their services can offer their customers to download Hello world Dialer. After install, user needs username and password. Please contact your reseller to get access PIN.