IP Phone Grandstream Networks DP735 Grey 20 lines Wireless handset

The Grandstream DP735 is a ruggedized DECT cordless IP handset designed to mobilize VoIP communications across business, warehouse, retail and residential environments. It pairs with Grandstream DP750, DP752 or DP755 DECT base stations to provide reliable wireless telephony with HD audio and enterprise-grade DECT security.

Advantages

The DP735 offers long battery life with up to 65 hours of talk time and 650 hours standby, a 2.4" (240x320) color TFT display with three programmable soft keys, and support for up to 20 SIP accounts and 20 lines per handset. It includes DECT authentication and encryption, full duplex speakerphone, dedicated push-to-talk button, built-in proximity and accelerometer sensors, and a rugged IP67-rated, chemical-resistant antimicrobial casing with 2.5 m drop protection.

Suitable for

• Warehouse and production floor communications
• Retail stores and hospitality environments
• Field and mobile staff within large business campuses
• Residential use where rugged, secure VoIP mobility is required

Key specifications

• Display: 2.4" TFT, 240 x 320 pixels
• Lines / Accounts: Up to 20 SIP accounts, 20 lines per handset
• Range: Up to 50 m indoors, up to 400 m outdoors (with DP755)
• Battery life: Up to 65 hours talk time, 650 hours standby
• Audio: HD audio codecs (including G.722, G.726), full duplex speakerphone, AEC, AGC
• Connectivity: DECT wireless (paired with DP750/DP752/DP755 base stations)
• Durability: IP67 rated (water/dust resistant), chemical resistant, antimicrobial casing, drop-safe to 2.5 m
• Other: Dedicated push-to-talk button, proximity and accelerometer sensors, TR-069 and XML provisioning, Zero Config with Grandstream UCM

How to use

Pair the DP735 handset with a compatible Grandstream DECT base station (DP750, DP752 or DP755) following the base station's registration procedure. Configure SIP accounts either manually or via automated provisioning (TR-069, XML or Zero Config with UCM PBX). Use the 2.4" TFT display and programmable soft keys to manage lines and calls; the push-to-talk button enables quick group communication. Place the handset on its charger between shifts to maintain battery life.

Recommendations

Use the DP735 with the DP755 base station to maximize outdoor range (up to 400 m) and ensure firmware is kept up to date for security and interoperability. For prolonged battery life, charge regularly and avoid exposing the unit to extreme temperatures or corrosive chemicals beyond its rated resistance.