4 VoIP accounts Call hold, mute, DND One-touch speed dial, hotline Call forward, call waiting, call transfer Group listening, SMS, emergency call Redial, call return, auto answer Local 5-way conferencing Direct IP call without SIP proxy Ring tone selection/import/delete Set date time manually or automatically Dial plan XML Browser, action URL/URI Integrated screenshots RTCP-XR, VQ-RTCPXR Enhanced DSS Key
