| Technical Specifications – Grandstream DP722 |
|---|
| Model | DP722 |
| Device Type | DECT Cordless HD Handset (VoIP) |
| Air Interface | DECT standard |
| Frequency Bands | 1880–1900 MHz (EU), 1920–1930 MHz (US), Brazil, Korea, Japan, Taiwan variants |
| Number of Channels | 10 (EU), 5 (US/Brazil/Japan), 3 (Korea), 8 (Taiwan) |
| Operating Range | Up to 350 m outdoors; 50 m indoors |
| Display | 1.8″ (128×160) color TFT LCD |
| Keys | 23 keys (incl. 2 soft keys, navigation, function keys) |
| Indicator LED | 3-color MWI LED |
| Headset Jack | 3.5 mm headset port |
| Voice Codecs | G.722 (HD), G.726, G.711μ/a, G.723.1, G.729A/B, iLBC, OPUS (via base) |
| Audio Features | AEC, AGC, ambient noise reduction, advanced noise suppression |
| SIP Accounts / Lines | Up to 20 SIP accounts & lines with DP755 base; up to 10 with DP752/DP750 |
| Telephony Features | Hold, transfer, forward, call park, pickup, waiting, 3-way conferencing, auto answer |
| Security | DECT authentication & encryption |
| Provisioning | OTA firmware updates (SUOTA), provisioning via TR-069/XML |
| Battery | 800 mAh Ni-MH (LSD) AAA × 2 — ~20 h talk, ~250 h standby |
| Power | Universal 100-240 V AC to 5 V DC adapter / Micro-USB charging |
| Dimensions (Handset) | 158 × 50 × 28.1 mm |
| Weight (Handset) | ≈ 110 g |
| Operating Temp. | -10 °C to 50 °C |
| Storage Temp. | -20 °C to 60 °C |
| Humidity | 10 % – 90 % non-condensing |
| Package Includes | Handset, power supply, charger cradle, belt clip, 2 batteries, Quick Start Guide |
