Features
Up to 20 lines and 20 SIP accounts (with DP755), or 10 lines and 10 SIP accounts (with DP752 and DP750)
Supports a range of up to 350 meters outdoors (with DP755/DP752) and 50 meters indoors with 20 hours of talk time and 250 hours standby time
1.8 inch (128x160) color LCD with 2 programmable soft keys
3-way conferencing
Push-to-talk via a configurable button
Seamless 1-touch door control with Grandstream’s GDS series of Facility Access devices
HD audio on the speakerphone, handset, and headset jack
Software and firmware updates over-the-air