Supports 4 lines, 4 SIP accounts and 5-way voice conferencing
HD audio on speakerphone and handset, 5 programmable context-sensitive soft keys
Compatible with GXP2200 LCD extension module (GXP2200 EXT)
1 megapixel Progressive Scan CMOS image sensor, 720p resolution, 2.8mm lens
Advanced multi-streaming rate real-time H.264, Motion JPEG
Integrated Power-over-Ethernet (802.3af)
Supports Motion Detection and can send notifications when security events occur to IP Video Phones, IP Phones, screenshot to email, and more
Includes built-in speaker, microphone and SD card slot for local storage
Integrate with third party speakers, microphones, intercom systems, sirens, alarms, alarm devices such as door sensors and third party motion sensors, and more
Up to 2 concurrent HD calls
Extends an additional range of 300 meters outdoors and 50 meters indoors for added mobility
Automatic or manual association to DP750/DP752 base stations for easy use
Supports Plug-n-Play features like auto association, auto region detection and seamless call handover
Automated provisioning options include XML config files
Ethernet connection provides PoE features
Ubiquiti ES-8XP Edgeswitch 8 ports managed advanced POE Switch 
N Male connector for LMR400 
