1. Einleitung
This manual provides detailed instructions for the setup, operation, and maintenance of your NEC DT300 Series DTL-8LD-1 Office Phone. Please read this manual thoroughly before using the phone to ensure proper functionality and to maximize its features. This corded office phone is designed for reliable communication in a professional environment.
2. Produktüberschreitungview
2.1 Hauptmerkmale
- Vierfach verstellbare Basis für ergonomische Positionierung.
- Full-duplex speakerphone for clear hands-free communication.
- 8 programmable line keys (Red, Green indicators) and 4 soft keys (Help, Exit).
- DESI-less line key display supporting 8 lines per page, with four pages accessible via scroll key.
- Two 168 x 55 dot matrix backlit LCDs with cursor keys for easy navigation.
- Modulares Design für flexible Konfiguration.
2.2 Telefonkomponenten

Abbildung 1: NEC DT300 Series DTL-8LD-1 Office Phone. This image displays the complete phone unit, including the handset, base with keypad, and dual LCD screens. The adjustable base is visible, allowing for different viewwinkeln.
The NEC DT300 Series DTL-8LD-1 Office Phone consists of a main base unit, a handset, and a coiled handset cord. The base unit features a numeric keypad, dedicated function buttons, programmable line keys, soft keys, and two backlit LCD screens for displaying call information and menu options. The adjustable base allows for comfortable viewing und Betrieb.
3. Einrichtung
3.1 Anschließen des Mobilteils
- Suchen Sie das spiralförmige Hörerkabel.
- Plug one end of the coiled cord into the jack on the side of the handset.
- Plug the other end of the coiled cord into the designated handset jack on the left side of the phone base unit. Ensure both connections are secure.
3.2 Connecting the Line Cord
- Locate the telephone line cord.
- Plug one end of the line cord into the LINE jack on the back of the phone base unit.
- Plug the other end of the line cord into a standard telephone wall jack (RJ-11).
3.3 Connecting Power (if applicable)
The phone typically draws power from the telephone line. If your specific setup requires an external DC power adapter (not always included or necessary for basic operation), connect it to the DC power input jack on the back of the phone and then to a power outlet.
3.4 Adjusting the Base
The phone features a four-step adjustable base. Gently lift the phone and adjust the stand at the bottom to your preferred viewing angle for optimal comfort and visibility of the display.
4. Bedienungsanleitung
4.1 Anruf tätigen
- Heben Sie den Hörer ab oder drücken Sie die Lautsprecher Taste zum Aktivieren der Freisprechfunktion.
- Wählen Sie die gewünschte Telefonnummer über die Tastatur.
- The call will connect once the number is dialed.
4.2 Einen Anruf annehmen
- Wenn das Telefon klingelt, heben Sie den Hörer ab oder drücken Sie die Taste Lautsprecher Schaltfläche zum Antworten.
4.3 Verwendung der Freisprechfunktion
- Um einen Anruf über die Freisprechfunktion zu starten, drücken Sie die Taste Lautsprecher Drücken Sie die entsprechende Taste und wählen Sie dann die Nummer.
- To switch an active call from the handset to speakerphone, press the Lautsprecher button and then place the handset back in its cradle.
- To switch from speakerphone to handset, simply lift the handset.
4.4 Verwendung von Linientasten
The 8 line keys allow you to access different telephone lines or programmed features. The red and green indicators show the status of each line (e.g., in use, on hold, ringing).
- Press an unlit line key to select an available line for making a call.
- Press a flashing line key to answer an incoming call on that line.
- Press a lit line key to place an active call on hold (if programmed).
4.5 Using Soft Keys
The 4 soft keys (Help, Exit, and two context-sensitive keys) located below the LCD screens change their function based on the current menu or call state. The labels for these functions will appear on the lower LCD screen directly above the keys.
- Drücken Helfen for on-screen assistance or information.
- Drücken Ausfahrt to return to the previous menu or the idle screen.
- Follow the on-screen prompts for the other two soft keys.
4.6 Navigating LCD Screens and Cursor Keys
The two 168 x 55 dot matrix backlit LCDs display call information, menus, and line status. Use the cursor keys (up, down, left, right) to navigate through menu options and lists. The scroll key allows you to cycle through the four pages of eight lines displayed by the DESI-less line keys.
4.7 Anrufer-ID
When an incoming call is received, the caller's information (if available) will be displayed on the LCD screen.
4.8 Basic Conference Call
The phone supports basic conference call functionality. Consult your system administrator or specific system documentation for detailed instructions on initiating and managing conference calls, as this feature often depends on the connected PBX system.
4.9 Multiline Operation
The phone is designed for multi-line operation, allowing you to manage multiple calls simultaneously. Use the line keys to switch between active calls, place calls on hold, or initiate new calls on different lines.
5. Wartung
5.1 Reinigung
- Disconnect the phone from the wall jack before cleaning.
- Benutzen Sie ein weiches, leichtamp cloth to wipe the exterior surfaces of the phone.
- Verwenden Sie keine Scheuermittel, Wachse oder Lösungsmittel, da diese die Oberfläche beschädigen können.
- Vermeiden Sie es, Flüssigkeiten direkt auf das Telefon zu sprühen.
5.2 Allgemeine Pflege
- Halten Sie das Telefon von direkter Sonneneinstrahlung, Wärmequellen und Feuchtigkeit fern.
- Vermeiden Sie es, das Telefon fallen zu lassen oder starken Stößen auszusetzen.
- Ensure cords are not tangled or pinched to prevent damage.
6. Fehlerbehebung
6.1 Kein Wählton
- Check that the telephone line cord is securely connected to both the phone and the wall jack.
- Testen Sie die Wanddose mit einem anderen funktionierenden Telefon, um sicherzustellen, dass die Leitung aktiv ist.
- If using an external power adapter, ensure it is properly connected and receiving power.
6.2 Display funktioniert nicht oder ist zu dunkel
- Ensure the phone is properly connected to the telephone line or external power source.
- Check for any system-wide power outages if multiple devices are affected.
6.3 Schlechte Gesprächsqualität
- Prüfen Sie alle Kabelverbindungen auf Lockerheit oder Beschädigung.
- Ensure there are no other electrical devices causing interference nearby.
- If using speakerphone, ensure you are within a reasonable distance and there is no excessive background noise.
6.4 Tasten reagieren nicht
- Try disconnecting the phone from the line and power (if applicable) for a few minutes, then reconnecting it.
- Achten Sie darauf, dass sich keine Fremdkörper unter den Knöpfen befinden.
Sollten die Probleme durch diese Schritte nicht behoben werden können, wenden Sie sich bitte an Ihren Systemadministrator oder den technischen Support.
7. Spezifikationen
| Besonderheit | Beschreibung |
|---|---|
| Marke | NEC |
| Modellnummer | DTL-8LD-1 (Mfr Part Number: 680010-cr) |
| Farbe | SCHWARZ |
| Telefontyp | Kabelgebunden |
| Material | Plastik |
| Stromquelle | DC (typically line-powered, external adapter optional) |
| Dialer-Typ | Einzelne Tastatur |
| Artikelabmessungen (L x B x H) | 10 x 10 x 4 Zoll |
| Typ des Anrufbeantworters | Digital (systemabhängig) |
| Kompatible Geräte | PSTN, ISDN |
| Konferenzschaltungsfunktion | Basic (system dependent) |
| Mehrlinienbetrieb | Ja |
| Anrufer-ID | Ja |
| Hersteller | NEC Infrontia Corporation |
| UPC | 090952228720 |
8. Garantie und Support
8.1 Eingeschränkte Garantie
Dieses Produkt wird mit einem 90 Tage eingeschränkte Garantie. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims. The warranty does not cover damage caused by misuse, accidents, unauthorized repairs, or external factors.
8.2 Technischer Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact the seller or your system administrator. Provide your product model number (DTL-8LD-1) and a detailed description of the issue when seeking support.