SpyTel is a mobile voip sip dialer for Android operating system.it's working in all low bandwidth areas.it's voice quality is good . you can successfully run this application in any Android supported Smartphone
SpyTel是一个移动的VoIP SIP拨号器Android操作系统system.it的工作,所有的低的带宽areas.it的语音质量是不错的。可以成功运行此应用程序支持任何Android智能手机