The Grandstream GRP2604 is a 3-line, 6-SIP account IP phone designed for small to medium businesses, remote workers, and service providers. It offers essential features with enhanced connectivity through Gigabit Ethernet and optional integrated Power over Ethernet (PoE) in the GRP2604P model.
📞 Key Specifications
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Lines & SIP Accounts: Supports 3 lines and up to 6 SIP accounts.
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Display: 2.48-inch (132 x 64 px) backlit graphical LCD.
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Audio Features:
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Full-duplex speakerphone with HD audio.
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5-way voice conferencing to maximize productivity.
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Noise Shield technology and AI noise reduction to minimize background noise.
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Network Interfaces:
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Dual 10/100/1000 Mbps Gigabit Ethernet ports.
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Integrated Power over Ethernet (PoE) available in GRP2604P model.
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Headset Support:
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RJ9 headset port with Electronic Hook Switch (EHS) support for Plantronics, Jabra, and Sennheiser headsets.
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Security Features:
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Secure boot, dual firmware images, and encrypted data storage for enterprise-level protection.
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Provisioning & Management:
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Zero-touch provisioning for mass deployment.
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Supported by Grandstream’s Device Management System (GDMS) for centralized configuration and monitoring.
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Physical Features:
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Four programmable context-sensitive soft keys.
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Wall-mountable with optional GRP_WM_A bracket.
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45° angle base stand.
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Swappable faceplate for easy logo customization.
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Audio Codecs Supported:
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G.711μ/a, G.722 (wideband), G.726, G.729A/B, G.723, iLBC, Opus.
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📦 Package Contents
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GRP2604 IP Phone.
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Handset with cord.
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Base stand.
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Ethernet cable.
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Quick Installation Guide.
