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  • Sold by Sada Smart Solutions LLP, GSTIN 29AEJFS5796N1ZTSada Smart Solutions LLP

Call or WhatsApp +91 96060 62750 / 62751, Mon to Sat, 9:00 AM to 6:30 PM

At a glance

Lines
3
SIP Accounts
6
Display
2.7 inch backlit monochrome LCD, 132 x 64
Network Ports
2 x 10/100/1000 Mbps Ethernet (switched), PoE on LAN
PoE
Yes, IEEE 802.3af Class 1, 3.84 W
Conference
5-way audio conference
Grandstream logoModel GRP2603PCurrent model

Grandstream GRP2603P PoE IP Phone, 3 Lines, 6 SIP, Gigabit Ports

₹9,818 Incl. GST

₹8,320 + 18% GST

At a glance

Lines
3
SIP Accounts
6
Display
2.7 inch backlit monochrome LCD, 132 x 64
Network Ports
2 x 10/100/1000 Mbps Ethernet (switched), PoE on LAN
PoE
Yes, IEEE 802.3af Class 1, 3.84 W
Conference
5-way audio conference

A desk phone for offices and branches on PoE switches, where staff need three calls at once and IT wants phones powered from the network rack. Three lines, 6 SIP accounts and dual Gigabit ports.

Versions
GRP2603GRP2603P
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Overview

Offices and branches on Power over Ethernet (PoE) switches want phones powered and backed up from the network rack, not from a socket under each desk. The Grandstream GRP2603P is the PoE model of the GRP2603 three-line desk phone, with six Session Initiation Protocol (SIP) accounts, a 2.7 inch backlit screen, a dedicated Hold key and two Gigabit ports with IEEE 802.3af PoE. No adapter is supplied.

Is it right for you?

  • Suits offices and multi-branch projects built on PoE switches, where staff need three calls at once.
  • Suits buildings that back up the network rack with an uninterruptible power supply (UPS), so phones keep working in a power cut.
  • Choose the GRP2603 instead if your switch has no PoE: it comes with a power adapter, this model does not.
  • Choose the GRP2604P if you want 10 physical busy lamp field (BLF) keys to watch colleagues’ lines.

Key features

  • 3 lines and 6 SIP accounts, so a busy desk can hold several calls and answer several numbers.
  • 2.7 inch backlit monochrome screen (132 x 64) with 3 dual-colour line keys and a dedicated Hold key, so a busy desk can park and pick up calls quickly.
  • Two switched Gigabit (10/100/1000 Mbps) network ports, so a computer connected through the phone keeps its full Gigabit link, with built-in PoE (IEEE 802.3af Class 1, 3.84 W) so the phone can draw power from a PoE switch.
  • High-definition (HD) wideband audio on the handset and speakerphone, and 5-way audio conferencing with Opus and G.722 codecs, so calls sound clear and a small group can join one call.
  • Shared and bridged line appearance, so a team can see and pick up each other’s lines.
  • Swappable faceplate, so you can add your company logo.
  • Phonebook of up to 2,000 entries and an 800-record call log.
  • Zero-touch cloud provisioning through Grandstream Device Management System (GDMS), with secure boot and encrypted data storage.

What else you need

  • A SIP account for each line, from a phone system (IP PBX) in your building or in the cloud, or from a hosted voice over IP (VoIP) provider. The phone registers to any of them over standard SIP.
  • An IEEE 802.3af PoE switch port or PoE injector. No power adapter is supplied, so if your switch has no PoE, order a 5 V DC, 0.6 A adapter separately.
  • A network cable to the desk: this model has no Wi-Fi.
  • Only if you want the phone on a wall, the GRP_WM_A wall mount bracket, sold separately.
  • Only if you want a wired headset, one with an RJ9 plug; electronic hook switch (EHS) control works with Plantronics, Jabra and Sennheiser headsets.

Installation

A desk phone is a plug-in job that an office IT person or phone installer can do: fit the handset cord, connect the network cable and a PoE switch port or injector, then enter the SIP account details in the phone’s web interface. For a roll-out of many phones, an installer can push the settings through GDMS or TR-069 instead.

The supplied desk stand offers two viewing angles, 39 and 45 degrees.

For wall use, fit the GRP_WM_A bracket. Screws and wall anchors are not included with the bracket, so match them to your wall. Reverse the hookswitch tab under the handset rest so the handset stays put when the phone is upright.

Software and licences

GDMS cloud provisioning and TR-069 let an installer or IT team configure, monitor and update phones centrally, and the web interface covers a single phone. Grandstream’s Click2Dial browser extension places calls from a computer.

Before you buy

  • No power adapter is supplied. Plan on an IEEE 802.3af PoE switch port or injector, or order a 5 V DC, 0.6 A adapter separately.
  • The GRP_WM_A wall mount bracket is sold separately and comes without screws or wall anchors.
  • It is made for indoor desks, with an operating range of 0 to 40 °C.

Technical specifications

Key facts

What is it?
IP desk phoneBrand Grandstream, model GRP2603P
How is it powered?
PoE
Does it support PoE?
YesPoE (IEEE 802.3af)
Which documents are available?
Installation guide, datasheet, quick start guide, user guide, software, and more Open documents
Not stated by the manufacturer
box contents

RelatedDocumentsAll Grandstream documents

Lines
3
SIP Accounts
6
Display
2.7 inch backlit monochrome LCD, 132 x 64
Network Ports
2 x 10/100/1000 Mbps Ethernet (switched), PoE on LAN
PoE
Yes, IEEE 802.3af Class 1, 3.84 W
Wi-Fi
No
HD Audio
Yes, wideband handset and speakerphone
Codecs
G.711, G.722 (wideband), G.729A/B, G.726, G.723.1, iLBC, Opus
Conference
5-way audio conference
Headset Port
RJ9 headset jack with EHS support (Plantronics, Jabra, Sennheiser)
Programmable Keys
3 line keys, 4 XML softkeys, 5 navigation keys, 9 fixed function keys including Hold
Power
PoE IEEE 802.3af; optional 5 V DC, 0.6 A adapter (not included)
Mounting
Desk stand included; wall mount with optional bracket (GRP_WM_A)
Dimensions
214 x 206 x 68 mm (with handset)
Weight
780 g
Operating Temperature
0 to 40 °C
Management
Web interface, GDMS cloud provisioning, TR-069
Warranty
Manufacturer warranty under Grandstream's terms. How claims work
Product attributes and shipping details
Brand

Grandstream

Ports

2 x GigE

Supply Voltage

5 V DC

Connectivity

PoE, SIP

PoE standard

PoE (IEEE 802.3af)

PoE role

Powered device

Downloads

Download software

  • Grandstream GRP2600 Series software (GS EXT (virtual extension))PublicVersion 1.0.21 · iOS 9.0+; Android (https://play.google.com/store/apps/details?id=com.grandstream.vext) · Released September 11, 2026Prerequisites: GRP260x phone; Virtual extension add-on listed for GRP260xLicence: FreeSoftware · Family · apps.apple.com
    View official download page

Documentation

  • GRP2603/GRP2603P DatasheetPublicDatasheet · Family · 590.1 KB
    Download
Certificate and compliance document (1)
  • Grandstream GRP2603P EU declaration of conformityPublicCertificate · This model · 193.5 KB
    Download

User manual

  • GRP260x Series User GuidePublicUser guide · Family · 3.2 MB
    Download

Installation guide

  • GRP_WM_A Wall Mount Quick Installation GuidePublicInstallation guide · This model · 2.1 MB
    Download
  • GRP2603/P Quick Installation GuidePublicQuick start guide · Family · 16.5 MB
    Download

Firmware

  • Grandstream firmware: GRP2601/P/W, GRP2602/P/G/W, GRP2603/P, GRP2604/PPublicVersion 1.0.7.71 · n/a (device firmware)Prerequisites: Read release notes and warnings in the row (downgrade limits, backups); Firmware update only from this exact model row; read release notes firstLicence: FreeFirmware · Family · grandstream.com
    View official download page

Series documents can differ from your exact model. Report a wrong or missing file

Works with this product

Relevant accessories

Replacements and alternatives

Other models in the series

Questions about this product

Does the GRP2603P come with a power adapter?

No. This PoE model ships without an adapter. Power it from an IEEE 802.3af PoE switch port or PoE injector, or buy a 5 V DC, 0.6 A adapter separately.

Can the GRP2603P be mounted on a wall?

Yes, with the GRP_WM_A wall mount bracket. It is sold separately and does not include screws or wall anchors.

Do I need a phone system to use the GRP2603P?

Yes. Each line needs a SIP account, from an IP PBX in your building or in the cloud, or from a hosted VoIP provider. The phone registers to any of these over standard SIP.

Does it need an internet connection?

Only if your phone system or SIP provider is in the cloud. The phone connects to your network; it reaches an IP PBX in the building over the local network and a cloud or hosted service through your internet connection.

Will my computer still get Gigabit speed through the phone?

Yes. Both network ports run at 10/100/1000 Mbps, so a PC connected through the phone keeps its Gigabit link.

Can I use a headset with it?

Yes. The RJ9 headset jack supports EHS control with Plantronics, Jabra and Sennheiser headsets.

Ask about this modelSetup, compatibility, what is in the box
Downloads

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₹9,818incl. GST