Grandstream DP720 DECT Cordless Handset

The Grandstream DP720 is an additional cordless handset for Grandstream's DECT platform, intended for staff who need to take calls away from a desk without carrying a mobile. It has no base station of its own — it registers to a DP750, DP752 or DP755 base, which does the SIP work and pushes lines out to every handset paired with it.

Because DECT operates on its own licensed band rather than sharing your Wi-Fi, coverage stays predictable even on busy networks. A single charge gives up to 20 hours of talking and roughly ten days on standby, and the 1.8-inch colour screen, HD speakerphone and 3.5mm headset socket make it practical for everyday use in workshops, stockrooms, care settings and small offices.

Ideal for

• Expanding an existing DP750, DP752 or DP755 DECT system with extra handsets
• Warehouses, stockrooms and workshops where Wi-Fi coverage is patchy
• Care homes and residential settings needing long standby between charges
• Small offices that want cordless extensions without a new phone system
• Retail units, garages and trade counters with staff away from a desk
• Sites replacing ageing analogue cordless phones with SIP

Key features

• Pairs with DP750, DP752 and DP755 — up to 20 lines and 20 SIP accounts on a DP755, or 10 lines and 10 accounts on a DP752 or DP750
• Long DECT range — up to 350 metres outdoors with a DP755 or DP752 base, and up to 50 metres indoors
• 20 hours talk time — around 250 hours on standby, so a handset survives a weekend on the cradle
• Full HD audio — G.722 wideband on both the earpiece and the full-duplex speakerphone
• 1.8-inch colour display — 128 x 160 TFT LCD for clear caller ID and menus
• Three-way conferencing — bring a third party into a call from the handset
• DECT authentication and encryption — calls and account credentials are protected over the air
• 3.5mm headset socket — use a wired headset for hands-free work
• Standard telephony features — transfer, forward, call waiting and do not disturb
• Remote provisioning — TR-069, XML config files and GDMS cloud management

Technical specification

Wireless and range

• DECT standard air interface
• European frequency band: 1880–1900 MHz
• Outdoor range: up to 350 metres with DP755 or DP752, up to 300 metres with DP750
• Indoor range: up to 50 metres

Telephony

• Up to 20 lines and 20 SIP accounts with a DP755 base
• Up to 10 lines and 10 SIP accounts with a DP752 or DP750 base
• Codecs on the handset: G.722 (HD) and G.726
• G.711µ/a-law, G.723.1, G.729A/B, iLBC and Opus supported via the companion base station
• Three-way audio conferencing, transfer, forward, call waiting, do not disturb
• AEC, AGC and ambient noise reduction

Display and interface

• 1.8-inch colour TFT LCD, 128 x 160
• 3.5mm headset jack
• Full-duplex speakerphone

Battery and power

• 2 x 800mAh Ni-MH low self-discharge AAA batteries
• Up to 20 hours talk time
• Up to 250 hours standby time
• Universal power supply for the charging cradle

Physical and environmental

• Handset: 155 x 50 x 26 mm, 138g
• Charging cradle: 35 x 63.5 x 54 mm, 71g
• Operating temperature: -10°C to 50°C
• Storage temperature: -20°C to 60°C
• Humidity: 10% to 90% non-condensing

Security and management

• DECT authentication and encryption
• TR-069 and XML configuration file provisioning
• GDMS cloud device management
• Compliance: CE, FCC, IC, RCM

Works with