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Avaya M3904 Professional Phone

(£52.80 inc tax)
  • M3900
Product Code:
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The Avaya M3904 Professional Phone (NTMN34) is in stock.

The Avaya M3904 is available in two colour options: platinum (NTMN34-66) and charcoal (NTMN34-70).

Features include a personal directory PC facility, which allows a directory of up to one hundred contacts to be created on a PC and then downloaded straight to the telephone. An Accessory Connection Module (ACM) can be attached to the Avaya M3904 phone, allowing it to support up to two snap-in cartridges.

In addition, full duplex, hands free mode can be achieved through the Full Duplex Hands Free accessory that snaps in to the ACM. MF Communications offer a full one year warranty on all our business telephone systems and business telephone solutions.

The Avaya M3904 Professional Telephone is a multi line, digital telephone that is compatible with the Meridian Option telephone system. Ideal for busy office environments with high call usage, the M3904 telephone supports up to 12 lines and has a 5-line by 24 character display; the largest in its class.

MF Communications stock a wide range of new, remanufactured and refurbished Avaya business phones.

We have these in stock NEW and original boxed!

Please quote Avaya M3904 Professional phone, or part number NTMN34 when contacting us about this business phone.

MF Communications stock a complete range of Avaya M3900 Series business phones and phone accessories including:

M3902 Basic Phone

M3903 Phone

M3905 Call Centre Phone

Key Features

  • Multi-line digital phone with five-line x 24-character display
  • Personal Directory and Call Log
  • Interactive soft keys for quick access to numerous features
  • Fixed feature keys
  • Hold, Goodbye, Volume Control, "Smart" Mute and Headset w/LED, Options, Message
  • Directory / Log, Redial, Applications, Shift
  • Handsfree with LED
  • Direct-connect headset port
  • Add-on Accessory Connection Module (ACM) supports up to two snap-in adapters*

User Guide (avaya-m39-series-phone-user-guide.pdf, 773 Kb) [Download]

At MF Communications we offer a full one year warranty* on all new, remanufactured and refurbished products.

We offer after sales support** and advice from answering simple user questions to full system programming services. These services are maintained through a combination of online support documents and a full range of business telecoms services, including our maintenance and support services.

We will do all we can to offer our assistance with any problems you may encounter.

MF Communications has built its reputation on offering customer satisfaction. So if you are a customer with a problem, we want to know about it. You can contact us by calling +44 (0) 1892 514687 or email

*some DECT telephones & untested equipment has a reduced time period warranty.

**where relevant to products/services offered.

UK Delivery

We aim for next day delivery. Any order placed before 1.00 pm on any business day (Monday - Friday excluding Bank Holidays) should be delivered the next business day before 5.30 pm (assuming the item is in stock).

Worldwide Delivery

We ship worldwide from our UK warehouse. All international shipment charges are quoted per parcel. If your order exceeds the standard parcel size further shipment charges will be due before the order can be shipped. We will contact you directly with any additional shipment charges are due.

Read more information on UK and Worldwide Delivery.

  1. The Customer is required to inspect all goods upon receipt and to notify MF Communications Limited of any defects or complaints within 7 days of receiving goods.
  2. It is the responsibility of the customer to ensure the safe return of faulty or incorrect goods to MF Communications Limited.
  3. All goods returned must clearly state customers name, order no, telephone number, fault details and proof of purchasing. These goods must be in MF Communications Limited’s original packaging and condition, with original insertions, fixtures and parts. Failure to do so will result in the refund being invalidated.
  4. We use tamper proof labels which are stuck to each item sold by MF Communications Limited. This ensures that goods have been purchased from MF Communications Limited. When the label is peeled back MF Communications Limited Company details sticks to the glue and the label will then say void. No goods will be accepted back unless this label is intact.
  5. Restocking Fee 20% UK Only. Returned Goods MUST be in re-saleable condition or customer will be charged full invoice value.
Aastra ELU29

End of life product support: Professional and Competent

At MF Communications, we understand there are many reasons to keep an end-of-life system in operation. Our quality remanufacturing and refurbishing process ensures we are able to supply parts, spares and phones you can rely on to keep your system in operation for as long as you need it to.

We have been supplying new, remanufactured and refurbished business phones, telephone systems and parts since August 2000. We have built a strong reputation for high-quality products, support and excellent customer service to businesses in over 125 countries.

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