Grandstream Networks DP755 User Manual page 5

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Air Interface
Peripherals
Protocols/Standards
Voice Codecs
Telephony Features
HD Audio
Security
Multi-language
Upgrade/ Provisioning
Multiple Line Access
Power & Green Energy
Efficiency
Package Content
Dimensions (H x W x D)
Telephony standards: DECT
Frequency bands:
● 1880 – 1900 MHz (Europe), 1920 – 1930 MHz (US)
● 1910 – 1920 MHz (Brazil), 1786 – 1792 MHz (Korea)
● 1893 – 1906 MHz (Japan), 1880 – 1895 MHz (Taiwan)
Number of channels: 10 (Europe), 5 (US, Brazil or Japan), 3 (Korea), 8
(Taiwan)
Range: up to 400 meters outdoor and 50 meters indoor
2.4 inch (240×320) color TFT LCD
27 keys including 3 soft keys, 5 navigation/ menu keys, 4 dedicated
function keys for SEND, POWER/END, SPEAKERPHONE, MUTE, 3
side keys including 2 volume (up and down) and 1 Push-to-Talk key
3-color MWI LED
3.5mm headset jack
Proximity and accelerometer sensors
Backlit keypad
Removable belt clip
Micro-USB port for alternative charging and non-battery operation
Hearing Aid Compatibility (HAC) compliant
G.722 codec for HD audio and G.726 codec for narrow band audio
(G.711μ/a-law, G.723.1, G.729A/B, iLBC and OPUS are supported via
companion DECT base station DP755), AEC, AGC, Ambient noise
reduction on microphone capturing and advanced noise suppression on
audio playing
Hold, transfer, forward, 3-way conference, push-to-talk, intercom, call
park, call pickup, downloadable phonebook, call waiting, call log, auto
answer, click-to-dial, flexible dial plan
Yes, in both Handsets and Speakerphone modes
DECT authentication & encryption
Chinese Simple, Chinese Tradition, Czech, Danish, Dutch, English,
Estonian, Finnish, French, German, Hebrew, Hungarian, Japanese,
Korean, Norwegian, Polish, Portuguese, Romanian, Spanish, Turkish.
Software Upgrade Over-The-Air (SUOTA), handsets provisioning Over-
The-Air
Each handset may access up to 10 lines
Universal Power Supply Input AC 100-240V 50/60Hz; Output 5VDC
1A; Micro-USB connection;
Rechargeable Li-ion battery (500 hours of standby time and 40 hours of
talk time)
Handset unit, universal power supply, charger cradle, belt clip, 1 battery,
Quick Installation Guide
Handset: 168.5 x 52.5 x 21.8mm;
Charger cradle: 76 x 73 x 81mm

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