Grandstream DP720 Grandstream phone

Specifications: Supports up to 10 SIP accounts, and up to 10 lines. Screen size: (128x160) 1.8 inch color TFT LCD. Ports: Micro-USB port. 23 keys including 2 soft keys, 5 navigation/menu keys, 4 dedicated function keys. 3-color MWI LED. 3.5mm headset jack. Power ports: Universal Power Supply. Input: 100 ~ 240 volts. Output: 5+ volts, 1 amp. Micro-USB port for alternative charging and non-battery operation. Rechargeable 800mAh Ni-MH Low Self-Discharge (LSD) AAA batteries (250 hours of standby time and 20 hours of talk time). Dimensions: 155 mm (length) * 50 mm (width) * 26 mm (height). Weight: 360 grams. Operating temperature: up to 50 degrees Celsius. Features: Call hold, call forwarding, call transfer, 3 audio conferences, intercom, phonebook, call waiting, call log, auto answer, noise cancellation, screen sleep during call.