Bluetooth Bluetooth 5.0 RAM ROM 2+16GB 0peration System Android 10 SIM Card One Standard SIM Card Adapter and Battery 3.7V 2500mAh Input AC 100~240V ....
Features: . Integration of multiple networks include FXO (CO), FXS and VoIP/SIP . Modular design with selections of FXS/FXO module . Open standard SIP...