RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)
10-party audio conferencing
Data import/export via Bluetooth, email, etc.
DoorPhone features: Preview, One-button Open,
Monitoring
USB/Bluetooth connectivity to Yealink CP900/CP700
speakerphone, USB connectivity to Yealink UH36
headset:
Basic functions: Answer/end, call mute
Enhanced function: audio optimization, redial, call
hold, volume synchronization, multiple calls control
Analog PSTN calls via CPN10
Wireless Access Point (AP mode)