Grandstream GRP2650 Phone: The Power of Professional Communication

2025-07-29
VoIP
Grandstream GRP2650 Phone: The Power of Professional Communication

Grandstream GRP2650 Phone: The Power of Professional Communication 

 

Grandstream GRP2650 Phone is among the top IP phones designed to meet the needs of large enterprises and organizations. This device provides an ideal solution for busy offices and call centers, thanks to its support for 14 lines and advanced design. 

In this article, we will review the leading features of this phone based on its official specifications, focusing on how it enhances productivity and improves communication. 

 

Practical Design 

Grandstream GRP2650 boasts a design that combines durability with practical functionality. Its metal chassis ensures resilience for daily use, while the 5-inch (1280x720) touchscreen enables easy control of lines and settings. 

  • Screen Size: 5-inch high-definition display. 

  • Lighting: Ensures clear visibility in low-light conditions. 

  • Mounting: Supports desk or wall installation. 

Grandstream Phones

Superior Audio Quality 

Grandstream GRP2650 Phone delivers an exceptional audio experience thanks to its support for high-definition (HD) audio. The device relies on codecs such as G.722 and Opus to ensure crystal-clear sound, with a full-duplex speakerphone supporting group calls. 

Audio Features: 

  • Noise Shield Technology: Reduces background noise for enhanced clarity. 

  • Wideband Audio Support: Provides natural and clear sound. 

  • Headset Compatibility: Supports RJ9 ports and EHS for Plantronics headsets. 

 

Efficient Management of 14 Lines 

GRP2650 supports 14 lines with 6 SIP accounts, enabling it to handle high call volumes. It features 56 programmable multi-purpose keys (VPKs), facilitating status monitoring and quick call handling. 

Feature 

Details 

Number of Lines 

14 lines 

SIP Accounts 

6 accounts 

VPK Buttons 

56 customizable buttons 

LED Indicators 

Dual-color for status display 

Capabilities can be expanded with extension modules, making it ideal for users with high-demand requirements. 

 

Cloud Management with GDMS 

Grandstream GRP2650 Phone supports Grandstream’s Device Management System (GDMS), providing centralized control. This system enables device configuration, software updates, and remote performance monitoring. 

  • Monitoring: Easily track performance and resolve issues. 

  • Updates: Supports automatic firmware updates. 

  • Customization: Flexible settings to meet business needs. 

 

Enterprise-Grade Security 

GRP2650 offers a high level of security through robust encryption, including SRTP and TLS for call protection, alongside Secure Boot and dual firmware images. 

Security Features: 

  • Call Encryption: Protects data from breaches. 

  • Encrypted Storage: Ensures the safety of stored data. 

  • Business Continuity: Dual firmware images minimize service interruptions. 

 

Flexible and Versatile Connectivity 

Grandstream GRP2650 Phone supports advanced connectivity options, including dual-band Wi-Fi (2.4 GHz and 5 GHz) and Bluetooth 5.0. It also features dual switched Gigabit Ethernet ports with PoE+ support. 

  • Wi-Fi: Enables wireless connectivity without cables. 

  • Bluetooth: Supports wireless headsets and contact synchronization. 

  • PoE+: Provides power via Ethernet cable. 

 

High-Quality Conferencing 

The GRP2650 supports audio conferences with up to 5 participants simultaneously. It allows participant management via the touchscreen, enhancing group communication. 

Feature 

Details 

Number of Participants 

5 parties 

Management 

Via touchscreen 

Audio Quality 

HD Audio for high clarity 

 

Outstanding Energy Efficiency 

Grandstream GRP2650 Phone is designed to minimize power consumption, thanks to PoE+ support and software updates that reduce energy use by up to 65%. It includes a power-saving mode that activates automatically during idle periods. 

  • PoE+: Eliminates the need for separate power sources. 

  • Energy Saving: Reduces consumption by up to 65% with updates. 

  • Standby Mode: Conserves energy when inactive. 

 

Broad System Compatibility 

GRP2650 integrates seamlessly with various VoIP systems such as Asterisk and 3CX, thanks to its support for 6 SIP accounts and protocols like RTP. This compatibility simplifies integration into existing environments. 

  • Supported Platforms: Compatible with traditional and cloud-based PBX systems. 

  • Protocols: Supports SIP and RTP for data transfer. 

  • Customization: Allows versatile user configurations. 

 

Customizable Buttons and Functions 

Grandstream GRP2650 Phone includes 6 programmable soft keys (XML Programmable Keys) and 56 virtual buttons (VPKs). These can be configured for purposes such as speed dialing or status monitoring. 

Usage Examples: 

  • Speed Dialing: Program frequently used numbers. 

  • BLF: Monitor the status of other lines. 

  • Customization: Adjust functions to meet specific needs. 

 

Support for Diverse Headsets 

GRP2650 supports a wide range of headsets, including RJ9 ports, EHS for Plantronics headsets, and USB ports. It also enables Bluetooth connectivity for contact synchronization. 

  • RJ9 Port: Supports traditional headsets. 

  • EHS: Enables the use of Plantronics headsets. 

  • USB and Bluetooth: Offers convenient wireless options. 

 

High Network Performance 

Grandstream GRP2650 Phone is equipped with dual switched Gigabit Ethernet ports (10/100/1000 Mbps) with PoE+ support, ensuring high-speed data transfer and energy efficiency. 

Feature 

Details 

Port Speed 

10/100/1000 Mbps 

PoE+ Support 

Powers the device via a single cable 

Switching 

Supports dual networks 

 

Improved User Experience 

GRP2650’s touchscreen provides an interactive interface for quick navigation between lines and settings. Pre-programmed buttons enhance comfort during extended use. 

  • Screen: 5-inch touchscreen with customization support. 

  • Buttons: Ergonomic design to reduce fatigue. 

  • Languages: Supports multiple languages. 

Grandstream GRP2650 Phone

Conclusion 

Grandstream GRP2650 Phone stands out as a professional communication solution due to its durable design, high audio quality, and advanced security features. It delivers comprehensive performance suitable for large enterprises and call centers, from line management to cloud support. 

Contact Modn Company today to acquire Grandstream GRP2650 and experience professional communication solutions designed to enhance your business efficiency. 

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