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Grandstream GRP2603

A six-account essential phone with dual gigabit ports. Full-speed PC passthrough at an entry price.

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Entry class

Why teams pick the GRP2603.

The GRP2603 brings gigabit networking down to the essential tier. Its dual autosensing gigabit ports mean the desk PC daisy-chained through the phone keeps its full connection speed, an upgrade the cheaper GRP2601 and GRP2602 cannot match. It supports up to six SIP accounts across three line keys, shows calls on a backlit 132x64 display, and offers five-way on-device conferencing, generous for this class.

This is the entry phone for modern offices where every drop is gigabit and phones share them with computers. Zero-touch provisioning is a core Grandstream design goal, and fvoip leans on it: your phones arrive registered, labeled, and current on firmware. Note the base GRP2603 is powered by an adapter; if you want PoE at this tier, ask us about the GRP2603P variant when ordering.

$55to own, orrent $8.99/mo

Rentals include advance replacement and firmware management. Either way, the phone arrives auto-provisioned — plug it in and your extension is live.

Manufacturer datasheet (PDF) ↓
Grandstream GRP2603 entry-level IP desk phone — 6-line, 132x64 backlit LCD display, dual Gigabit ports — front view

Specifications

  • Display132x64 backlit LCD
  • Lines6 SIP accounts, 3 line keys
  • EthernetDual autosensing gigabit ports
  • Wi-FiNo
  • BluetoothNo
  • USBNo
  • PowerPower adapter (PoE available on the GRP2603P variant)
  • Conference5-way audio conferencing
  • HeadsetRJ9 headset port

More Grandstream phones

Frequently asked questions

Is the GRP2603 plug-and-play with fvoip?
Yes. It ships pre-provisioned and configures itself on first boot. Accounts, line labels, and later changes are all managed from the fvoip portal, never through phone menus.
Rent at $8.99/month or buy at about $55?
Break-even is roughly six months, so buying wins for stable desks. Renting still makes sense for short-term offices, seasonal staff, or while you finalize which model to standardize on.
Does the GRP2603 support Power over Ethernet?
The base model does not; it uses a power adapter. Its sibling, the GRP2603P, adds integrated PoE with otherwise identical features. Tell us your switch setup and we will ship the right variant.

Put the GRP2603 on every desk.

Order with your fvoip service and every handset arrives ready to ring — no configuration required.

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