The Grandstream GRP2603P is the PoE model in Grandstream's GRP260x Essential series — a carrier-grade 3-line desk phone built for the everyday desks that make up most of an office fleet: general staff, shared workstations, and large rollouts where every phone needs to be dependable, simple, and inexpensive to deploy at scale.

Three line keys cover up to 3 call appearances across 6 SIP accounts. The 2.48-inch backlit graphical LCD (132 x 64) keeps menus, call logs, and the phonebook easy to read, and 5-way audio conferencing is built in for quick group calls without a bridge.

As the "P" model, the GRP2603P draws power and data over a single Ethernet cable: dual switched Gigabit Ethernet ports with integrated PoE (IEEE 802.3af) mean no power brick at the desk and a Gigabit pass-through port for the user's PC. HD audio on both the handset and the full-duplex speakerphone, noise shield technology, and EHS support for Plantronics, Jabra, and Sennheiser headsets keep calls clear in a busy office.

For administrators, the GRP2603P was designed for mass deployment: zero-touch provisioning and centralized configuration, monitoring, and firmware management through Grandstream's GDMS cloud platform, with carrier-grade protection from secure boot, dual firmware images, and encrypted data storage. The faceplate is swappable, so a business or service provider can put its own logo on every phone in the rollout.

Key specifications

• 3 lines / 6 SIP accounts, up to 3 call appearances
• 2.48-inch 132x64 backlit graphical LCD display
• Dual switched auto-sensing 10/100/1000 Mbps Gigabit Ethernet ports with integrated PoE (802.3af Class 1)
• HD audio — handset and full-duplex speakerphone with noise shield technology
• 5-way audio conferencing
• RJ9 headset jack with EHS support for Plantronics, Jabra, and Sennheiser headsets
• Phonebook up to 2,000 entries; call log up to 800 records
• Enterprise security: secure boot, dual firmware images, encrypted data storage
• Zero-touch provisioning and management via GDMS
• Swappable faceplate for logo customization
• Power: PoE (802.3af) — no power supply included; optional 5V adapter sold separately

What's included: GRP2603P phone, handset with cord, phone stand, network cable, Quick Installation Guide. Power supply is NOT included with the PoE model — the phone is powered over Ethernet, or with an optional 5V power adapter (sold separately).

Condition

New

Warranty

10-Year Reef Telecom Warranty

Manufacturer Part Number

GRP2603P

Reef SKU

GRANDSTREAM-GRP2603P

Brand

Grandstream

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All products include our industry-leading 10 Year Warranty backed by Reef Telecom.