128×384 backlit LCD display
20 programmable dual-color buttons per module, 2 pages per module (40 contacts total)
BLF/speed dial
Daisy-chain up to 4 modules for up to 160 contacts/extensions
BLA (bridged line appearance)/SC
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
 20 SIP lines, 3-way conference, hotspot
 5″ high-resolution color display
 HD audio on speakerphone and handset
 Up to 60 DSS keys entries available (12 physical)
 Built-in Bluetooth for connecting Bluetooth headset
 Wi-Fi connectivity (via Wi-Fi dongle)
 Video codec H.264 support for receiving video calls
 Stand with 2 adjustable angles of 40 and 50 degrees
 Support EHS headset
 Dual Gigabit ports, integrated PoE
 Compatible with major platforms:3CX, Avaya, Asterisk,
Broadsoft, Metaswitch, Elastix etc.
Grandstream CloudUCM Startup is a cloud-based PBX system designed for freelancers and small teams. It supports up to 10 extensions and 4 calls, includes built-in conferencing, live chat, and CRM integration, and comes with a 30-day free trial—no hosting fees required.
4-Line coloured Screen POE IP Phone (X4) 
