Grandstream GRP2603P 3-line Essential IP Phone

The Grandstream GRP2603P 3‑Line Essential IP Phone is a professional-grade VoIP desk phone built for reliability, scalability, and enterprise deployment. Supporting three lines and six SIP accounts, it offers HD full-duplex audio, AI-driven noise shield, five-party voice conferencing, integrated Power-over-Ethernet, EHS headset support, advanced security, and zero-touch provisioning via GDMS.

 Key Features

• 3 lines with 6 SIP accounts and up to 3 simultaneous calls

• 5-way local conferencing for streamlined group communication

• Full-duplex HD audio with noise shield and AI noise reduction

• Dual Gigabit Ethernet ports with integrated PoE (GRP2603P variant)

• EHS headset support (Plantronics, Jabra, Sennheiser compatible)

• 132×64 backlit graphical LCD display for clear navigation

• Enterprise-grade security: secure boot, dual firmware images, encrypted storage, TLS/SRTP, 802.1x authentication

• Zero-touch provisioning via GDMS (or TR-069) for easy deployment

• Swappable faceplate enables branding or labeling customization

• Supports wide codec range including Opus, G.722, G.711, G.729, iLBC, and G.726