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Get RDX EXPRESS TP old version APK for Android
## RDX EXPRESS TP cung cấp Cuộc gọi VoIP qua Wi-Fi, 2G / 3G / 4G tới bất kỳ số nào.
# Features:
*Enter username and password and enjoy hassle free calling.
*Smooth voice quality
*Echo cancellation
*Uses very less bandwidth.