The Grandstream GRP2603 3-Line Essential IP Phone is a reliable and feature-rich VoIP phone designed for professional business environments. Supporting 3 lines and 6 SIP accounts, it offers HD audio, integrated PoE (in GRP2603P variant), 5-way conferencing, EHS headset support, and advanced security features. With zero-touch provisioning via GDMS, it’s ideal for scalable deployments in offices, call centers, and remote

Key Features

• 3 lines and 6 SIP accounts

• HD audio with full-duplex speakerphone and noise shield

• 5-way voice conferencing

• Dual 10/100 Mbps Ethernet ports, PoE-enabled (GRP2603P)

• EHS headset support (Plantronics, Jabra, Sennheiser)

• 132×64 backlit graphical LCD display

• Secure boot, encrypted data storage, dual firmware images

• Zero-touch provisioning via GDMS

• Swappable faceplate for custom branding or labeling

• Wide codec support, including Opus, G.722, G.711, G.729