# IP Phone Grandstream Networks GRP2603 Black

**URL:** https://aio.lv/en/product--grandstream-grp2603--4008923
**Data updated:** 2025-12-29 13:58 (EET)
**Category:** VoIP Phones
**Manufacturer:** Grandstream
**Manufacturer code:** GRP2603
**EAN:** 6947273703181
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 61.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 50.82 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--grandstream-grp2603--4008923

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The Grandstream Networks GRP2603 is a reliable IP phone featuring a sleek black design, 3 lines, and a 2.48" LCD display. It supports Fast Ethernet with data rates of 10/100 Mbit/s and various network protocols including SIP, TCP/IP, and more. With an AC adapter input voltage of 100-240 V, it's perfect for any office setup.

## Long description

The Grandstream Networks GRP2603 is a carrier-grade IP phone with a compact black design, three programmable lines and a 2.48" LCD display. Designed for business environments, the GRP2603 supports standard SIP-based VoIP protocols and Fast Ethernet (10/100 Mbit/s). It offers easy deployment with zero-touch provisioning and flexible power options including PoE on models that support it, making it suitable for managed multi-phone installations.
Advantages
The GRP2603 provides full HD audio on both handset and speaker to improve voice clarity during calls. It supports five-way voice conferencing for small team meetings and includes EHS compatibility with Plantronics, Jabra and Sennheiser headsets. Built for large deployments, it features zero-touch provisioning and centralized management capabilities, while its Fast Ethernet interface and SIP compatibility ensure interoperability with common VoIP systems.
Suitable for
Small and medium office desks
Reception and shared workstations
Multi-device deployments managed centrally
Users requiring headset support for frequent calls
Key specifications
Model: Grandstream GRP2603 (MPN: GRP2603, EAN: 6947273703181)
Lines: 3 programmable lines
Display: 2.48" LCD
Network: Fast Ethernet 10/100 Mbit/s, SIP/TCP/IP support
Audio: Full HD audio on handset and speaker
Conferencing: 5-way voice conferencing
Headset: EHS support for Plantronics, Jabra and Sennheiser
Colour: Black
How to use
Connect the GRP2603 to your network using the Ethernet port and either power it via a compatible PoE switch or the appropriate AC adapter. Register the device to your SIP server or PBX following the zero-touch provisioning process provided by your administrator or service provider. Configure line accounts and handset/headset settings through the phone's menu or the web management interface, then test call quality and conferencing functions before regular use.
Usage recommendations
For large rollouts, use the GRP2603's zero-touch provisioning and centralized management to simplify configuration. If using headsets, verify EHS compatibility and update firmware to ensure optimal audio performance. Choose the PoE-capable model (GRP2603P) when centralized power delivery is preferred.

## Specifications

### Display

| Feature | Value |
|---|---|
| Display | LCD |
| Display diagonal | 2.48 " |

### Phone features

| Feature | Value |
|---|---|
| Call forwarding | Yes |
| Call waiting | Yes |
| Call hold | Yes |
| Lines quantity | 3 lines |

### Ports & interfaces

| Feature | Value |
|---|---|
| RJ-9 ports quantity | 1 |

### Network

| Feature | Value |
|---|---|
| Supported network protocols | SIP RFC3261, TCP/IP/UDP, RTP/RTCP, RTCP-XR, HTTP/HTTPS, ARP, ICMP, DNS(A record, SRV, NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE, LLDP, LDAP, TR- 069, SNMP, 802.1x, TLS, SRTP, IPv6 |
| Ethernet LAN | Yes |
| Ethernet LAN data rates | 100, 10 |
| Ethernet LAN interface type | Fast Ethernet |

### Power

| Feature | Value |
|---|---|
| AC adapter input voltage | 100-240 |
| Input frequency | 50/60 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 68 mm |
| Width | 206 mm |
| Depth | 214 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 10 - 90 |
| Storage temperature (T-T) | -10 - 60 |
| Operating temperature (T-T) | 0 - 40 |

### Packaging content

| Feature | Value |
|---|---|
| Number of handles included | 1 pc(s) |

### Design

| Feature | Value |
|---|---|
| Product colour | Black |
| Product type | IP Phone |

## FAQ

### How much does the IP Phone GRP2603 cost, and is it available for purchase?

The price is 61.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 28 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 09.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Grandstream products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Grandstream service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: display, lines quantity, ethernet lan, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/4008923/65785004_large.webp