# Desk ISDN phone MITEL 51004990 for ISDN lines, rated 2.5 A 250 V

**URL:** https://aio.lv/en/product--mitel-51004990--3258428
**Data updated:** 2026-02-12 09:50 (EET)
**Category:** Landline Phones
**Manufacturer:** MITEL
**Manufacturer code:** 51004990
**EAN:** 0710980223954
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 25.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 21.07 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mitel-51004990--3258428

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.07.2026 | free |
| Pickup points | 27.07.2026 | 1.99 EUR |
| Courier delivery to door | 27.07.2026 | 4.99 EUR |

## Summary description

ISDN desk phone MITEL 51004990 is designed for use with ISDN telephone lines. The unit is specified at 2.5 A and 250 V. It provides standard ISDN voice connectivity for office or home environments, enabling reliable calls, line integration and basic telephony functions. Suitable for everyday voice communication where ISDN service is available.

## Long description

ISDN desk phone MITEL 51004990 is designed for connection to ISDN telephone lines and provides reliable voice communication for office and home environments. The unit supports standard ISDN call handling and basic telephony functions suitable for everyday use where ISDN service is available. It is rated for operation with supply or line characteristics up to 2.5 A and 250 V and integrates with existing ISDN infrastructure to deliver clear voice transmission and straightforward line management.
Advantages
The device offers solid compatibility with ISDN networks and straightforward operation without the need for complex configuration. Its electrical rating of 2.5 A and 250 V ensures compatibility with common ISDN line conditions and contributes to stable performance. The handset and control layout are optimized for routine call handling, reducing the learning curve for users familiar with standard desk phones. The build and connectors follow conventional ISDN telephony standards, enabling quick integration into PBX or direct line setups.
Suitable for
Office workstations requiring standard ISDN voice calls
Home offices with active ISDN service
Small businesses using ISDN telephone systems or PBX integration
Environments needing a basic, reliable desk phone for voice-only communication
Key specifications
Connection type: ISDN line compatibility for standard voice calls
Electrical rating: 2.5 A, 250 V for line/supply conditions
Form factor: desk/desktop phone with handset and base unit
Primary function: voice telephony with standard ISDN call handling
Intended environment: office and home use with ISDN service
How to use
Connect the phone to the ISDN line following the installation instructions provided with the telephone system or from the network operator. Ensure line power and ISDN service are active and that connections are made to the appropriate ISDN ports. Use the handset and keypad to place and receive calls; basic call features such as answer, hang up, and numeric dialing operate as on standard desk phones. If integrating with a PBX, configure the PBX to recognize the device as an ISDN endpoint according to the PBX documentation.
Usage recommendations
Use this MITEL ISDN desk phone in locations where ISDN service is maintained and line characteristics do not exceed the specified 2.5 A, 250 V rating. For installation and troubleshooting, consult your network operator or PBX administrator to ensure proper line termination and compatibility. Avoid exposing the unit to moisture, extreme temperatures, or electrical spikes beyond specified limits.

## FAQ

### How much does the ISDN phone MITEL 51004990 cost, and is it available for purchase?

The price is 25.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 13 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 22.07.2026 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. 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 MITEL 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 MITEL 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

## Image

https://aio.lv/img/cache/product/3258428/47516143_large.webp