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    GRP2603(P)

    3-Line Essential IP Phone Designed for Mass Deployment and Easy Management
    The GRP2603 features 5-way voice conferencing to maximize productivity, integrated PoE (GRP2603P) and is supported by Grandstream’s Device Management System (GDMS). 

    • 3 lines, 6 SIP accounts, up to 3 call appearances
    • Supported by GDMS which provides a centralized interface to configure, provision, manage and monitor Grandstream devices
    • Electronic Hook Switch (EHS) support for Plantronics, Jabra, and Sennheiser headsets
    • Full-duplex speakerphone with HD audio to maximize audio quality and clarity
    • Equipped with noise shield technology to minimize background noise
    • Dual switched autosensing 10/100/1000 Mbps Gigabit Ethernet ports with integrated PoE (GRP2603P only)
    • Supports 5-way audio conferencing for easy conference calls
    • Enterprise-level protection including secure boot, dual firmware images, and encrypted data storage
    • Swappable faceplate to allow for easy logo customization
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    Product Resources & Documentation

    Grandstream Device Management System

    GDMS provides a FREE centralized interface to provision, manage, monitor and troubleshoot Grandstream products, including device management, account management, device configuration, firmware upgrades, device monitoring, intelligent alarm, and statistical analysis, individually or in batches of devices by site, group and model. This powerful cloud management platform adds robust security features to protect enterprise networks, including bank-grade TLS encryption from end-to-end, two-factor login authentication to protect your data security, two-way certificate verification and encryption of all device information. By offering a centralized, secure and zero-touch management for Grandstream endpoints, GDMS is ideal for enterprises, service providers and multi-site businesses as it allows them to easily deploy and manage large networks of Grandstream solutions. Visit gdms.cloud to sign up for free today!

    Android and iOS mobile users can access the GDMS mobile app from any device by downloading for free through the app store, or get it on google play.

    Sign Up

    Product Highlights

    Click2Dial Tool

    The GRP Click2Dial tool is a lightweight web browser extension that integrates seamlessly with Grandstream's GRP2600 series of essential IP phones. It allows anyone using a GRP2600 IP phone to place/answer calls, search for contacts, and access the GRP device's features directly from a computer's web browser. The GRP Click2Dial add-on helps reduce manual operations on the physical phone and improves work productivity and efficiency.

    Chrome, Firefox, Edge, and Safari are all supported browsers for this extension.

    Click here to access the user manual

    Click here to go to our tools page where you can download the Click2Dial Tool

    GRP Series Buyers Guide

    Here at Grandstream, our 20+ years of experience has helped us continue to offer some of the best IP phones in the world, with the latest example being our GRP series of Carrier-Grade IP Phones. The GRP2600 series are next-generation IP phones that are designed for mass deployment by enterprises and services providers, making them a powerful and reliable option for small-to-medium businesses as well. They feature sleek designs, a seamless user experience, available Wi-Fi and Bluetooth, zero-touch cloud provisioning and much more.

    This GRP series Buyer's Guide provides a streamlined tool to help you get the most out of any GRP series deployment. It walks you through building a modern, powerful voice network, highlights the many GRP features that make them the ideal choice for your deployment, and helps you chose the right GRP model for every need.

    View Buyers Guide

    GRP Series Energy Saving Features

    We have released a firmware for our award-winning GRP Series of Carrier-Grade IP Phones that enables them to use 65% less energy. 

    GRP2600 Series firmware version 1.0.9.62 will reduce the energy consumption of your IP phone deployments, allowing you to build greener workstations that save money.  Watch the video to learn more.

    Download Firmware

    Video Guides - GDMS - Grandstream Device Management System

    GDMS is the Grandstream cloud-based solution that offers the ability to manage, provision, and monitor Grandstream devices from one centralized management interface. In this tutorial, Grandstream's support team walks you through an in-depth overview of the GDMS platform.

    Watch Now

    Product Comparison

    NameGRP2603(P)
    Specs
    Display 2.7 inch (132x64) backlit graphical LCD Display
    Lines 3 Lines
    SIP Accounts 6 SIP Accounts
    Audio Conferencing 5-way audio conference
    Network Interfaces Dual switched autosensing 10/100/1000 Mbps Gigabit Ethernet ports with integrated PoE (GRP2603P only)
    Wi Fi No
    Device Management Yes, GDMS
    Custom Faceplates Yes

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    • 2 SIP account, 2 lines
    • GDMS online device management and provisioning
    • 5-way audio conferencing for easy conference calls
    • Equipped with noise shield technology to minimize background noise
    • Electronic Hook Switch (EHS) support for Plantronics, Jabra, and Sennheiser headsets
    • The GRP2601P includes built-in PoE to power the device and give it a network connection
    • Enterprise-level protection including secure boot, dual firmware images and encrypted data storage
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    • 2 SIP account, 2 lines
    • GDMS online device management and provisioning
    • 5-way audio conferencing for easy conference calls
    • Equipped with noise shield technology to minimize background noise
    • Electronic Hook Switch (EHS) support for Plantronics, Jabra, and Sennheiser headsets
    • The GRP2601P includes built-in PoE to power the device and give it a network connection
    • Enterprise-level protection including secure boot, dual firmware images and encrypted data storage
    GRP2604(P)

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    • 3 lines, 6 SIP accounts, up to 3 call appearances
    • Supported by GDMS which provides a centralized interface to configure, provision, manage and monitor Grandstream devices
    • Electronic Hook Switch (EHS) support for Plantronics, Jabra, and Sennheiser headsets
    • Full-duplex speakerphone with HD audio to maximize audio quality and clarity
    • Equipped with noise shield technology to minimize background noise
    • Dual switched autosensing 10/100/1000 Mbps Gigabit Ethernet ports with integrated PoE (GRP2604P only)
    • Supports 5-way audio conferencing for easy conference calls
    • Enterprise-level protection including secure boot, dual firmware images, and encrypted data storage
    • Swappable faceplate to allow for easy logo customization