Grandstream DP735 Ruggedized DECT Cordless HD Handset – Powerful, Reliable and Durable VoIP Performance

Experience Unmatched Durability with the Grandstream DP735

The Grandstream DP735 Ruggedized DECT Cordless HD Handset is designed to keep your communication crystal clear in any business or industrial environment. Whether in a busy office, expansive warehouse, or outdoor worksite, this phone combines mobility, durability, and superior HD audio to ensure every call is sharp, secure, and uninterrupted.

Seamless Mobility and Wide Coverage

Empower your team with cordless flexibility across your entire facility. When paired with the Grandstream DP755 DECT Base Station, the DP735 delivers up to 400 meters outdoor and 50 meters indoor range, ensuring uninterrupted connectivity throughout your workspace. Ideal for warehouses, campuses, hospitals, hotels, and large offices, the DP735 allows you to stay connected wherever work takes you.

Built Tough for Challenging Environments

Engineered with an IP67 rating, the DP735 is waterproof, dustproof, and chemical-resistant—ready to perform even in harsh or wet conditions. Its ruggedized design and 2.5-meter drop-safe rating protect it from accidental falls, while the antimicrobial casing kills 99 percent of microbes, ensuring a cleaner, healthier workspace.

Extended Battery Life and Fast Charging

The Grandstream DP735 DECT Handset delivers an astonishing 65 hours of talk time and up to 650 hours of standby time per charge. Even when you are on the go, a quick 10-minute charge provides up to 4 hours of talk time, keeping your business connected without interruption.

High-Definition Audio and Secure Communication

Enjoy HD voice clarity powered by advanced G.722 and OPUS codecs and full-duplex speakerphone capability. With DECT authentication and encryption, your calls remain private and secure. The DP735 ensures every conversation meets the highest standard of professional communication quality.

Feature-Rich and User-Friendly

This handset comes with a 2.4-inch (240×320) color TFT LCD display and three programmable soft keys for easy navigation. Each unit supports up to 20 SIP accounts and 20 lines, enabling efficient multi-line operation and three-way conferencing.
Built-in proximity and accelerometer sensors, a dedicated push-to-talk (PTT) button, and automated provisioning via TR-069 and XML config files simplify deployment. When used with Grandstream’s UCM IP PBX series, it supports Zero Config provisioning, streamlining installation and management.

Applications Across Industries

The Grandstream DP735 is perfect for:

• Warehouses and Factories: Reliable communication in noisy, demanding settings.

• Retail Stores and Hospitality: Enhance customer service through instant staff connectivity.

• Hospitals and Clinics: Maintain clean and hygienic communications with antimicrobial protection.

• Outdoor and Construction Sites: Dependable performance in dusty or wet environments.

• Home and Small Offices: Experience enterprise-grade VoIP communication at home.

Technical Highlights

• Range: 400 m outdoors (DP755) / 50 m indoors

• Display: 2.4-inch color TFT LCD (240×320)

• Audio Codecs: G.722, G.726, G.711 μ/ a-law, G.729A/B, iLBC, OPUS

• Accounts & Lines: 20 SIP accounts and 20 lines per handset

• Battery Life: 65 h talk / 650 h standby / fast charging

• Durability: IP67 rating, 2.5 m drop safe, antimicrobial surface

• Provisioning: TR-069 and XML config; Zero Config with UCM PBX

• Management: Fully compatible with Grandstream Device Management System (GDMS)

The Grandstream DP735 Ruggedized DECT Cordless HD Handset delivers the ultimate combination of mobility, security, and endurance for modern VoIP networks. It’s the perfect choice for businesses seeking absolute reliability and performance in demanding environments.

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