AtelClassic移动应用程序允许在智能手机上的3G / 4G /无线网络基于SIP的呼叫。
AtelClassic state-of-the-art mobile application allow SIP based calls to be used on 3G/4G/WiFi on smartphones. One unique point with our solution is its crystal quality. Even when the internet bandwidth is low, our solution is built in such a way that call quality is not affected.