IP Phone Grandstream Networks DP730 Black Grey

The Grandstream Networks DP730 Black Grey is a wireless IP phone handset designed for small business and home office environments. The handset supports up to 10 SIP lines and features a 2.4" TFT display (240 x 320) that provides clear on-screen information for calls and settings. With a compact two-tone grey and black design, the DP730 delivers essential VoIP functionality in a cordless form factor with a maximum indoor range of 50 meters and outdoor range up to 400 meters.

Advantages

The DP730 offers multi-line support that lets users manage several calls and accounts from one handset. Wide codec compatibility including G.711, G.722 and OPUS ensures improved audio quality and interoperability with many SIP platforms. The cordless design provides mobility within specified indoor and outdoor ranges while the integrated speakerphone allows hands-free conversations. The simple TFT display gives intuitive access to call information and menu navigation without touch controls.

Suitable for

• Small offices and remote workstations that require multi-line VoIP support
• Home offices where cordless mobility and clear voice quality are needed
• Reception or shared work areas that benefit from a portable VoIP handset
• Environments requiring compatibility with SIP-based phone systems and common voice codecs

Key specifications

• Handset type: Wireless handset
• Lines supported: Up to 10 SIP lines
• Display: 2.4" TFT, 240 x 320 pixels
• Audio codecs: G.711, G.722, OPUS (and other standard codecs)
• Speakerphone: Built-in speakerphone for hands-free use
• Wireless range: Up to 50 m indoors, up to 400 m outdoors
• Connectivity: Cordless SIP handset (no Ethernet LAN, no Bluetooth, no PoE)
• Color: Grey and Black

How to use

Unpack the handset and base according to the supplied quick start guide, charge the handset fully before first use, and register the device to your SIP server following the provisioning instructions or manual account setup. Use the 2.4" TFT display and keypad to navigate menus, configure accounts, and select lines. Place calls, answer incoming calls, or use the speakerphone for hands-free operation. Keep the handset within the specified indoor or outdoor range relative to its base station to maintain call quality and connectivity.

Recommendations

For best audio quality, choose a compatible codec supported by your VoIP platform such as G.722 or OPUS when available. Position the base station centrally within the intended indoor coverage area and avoid dense obstacles to maximize the effective indoor range. Regularly update handset firmware through your provisioning server to ensure compatibility and security.