The Grandstream GRP2603P IP phone supports 6 SIP accounts and features 3 line keys with dual-color LED indicators. Its 2.21-inch LCD has a resolution of 132 × 64 and a backlight. It delivers HD audio through the handset and full-duplex speakerphone, with noise reduction.

It supports 5-way audio conferencing, PoE, and EHS headset connectivity for Plantronics, Jabra, and Sennheiser headsets. Management and configuration through GDMS simplify centralized management and mass deployment. Data security features include secure boot, dual firmware images, and encrypted storage.

• Type: Corded IP phone
• Color: Black
• SIP accounts: 6
• Line keys: 3 with dual-color LED indicators
• Display: Backlit monochrome LCD, 2.21 inches, with a resolution of 132 × 64
• Audio: HD, noise reduction, and full-duplex speakerphone
• Audio conferencing: Up to 5 participants
• Power: PoE
• Network ports: 2 Gigabit
• Headset connectivity: EHS support for Plantronics, Jabra, and Sennheiser
• Management: GDMS for web-based configuration and centralized management
• Security: Secure boot, dual firmware images, and encrypted data storage
• Programmable keys: 4 XML
• Feature keys: 9 dedicated keys
• Menu and navigation keys: 5
• Stand: Desktop stand with 2 tilt positions: 39° and 45°
• Package contents: IP phone, handset and coiled cord, stand, network cable, quick installation guide, and GPL license