VoIP

Core Features: W70B: Up to 20 simultaneous calls Up to 10 DECT cordless handsets Up to 10 SIP accounts Support Opus audio codec Noise Reduction System TLS and SRTP security encryption No Perception Upgrade CP935W: 4-inch multi-touch screen...

Core Features: Red Dot [2021] Android 9.0 5-inch multi-touch screen with 720 1280 resolution Optimal HD audio, full duplex technology Yealink Noise Proof Technology 20-foot (6-meter) and 360-degree voice pickup Built-in...