Introduction
This manual provides essential information for the proper setup, operation, and maintenance of your NEC DTZ-12D-3 DT400 12-Button Display Phone. Please read these instructions carefully to ensure optimal performance and longevity of your device. This phone is designed for business communication environments, offering a range of features to enhance productivity.
Product Overview
The NEC DTZ-12D-3 DT400 is a corded 12-button display phone, featuring a clear LCD screen for call information and menu navigation. It is designed for efficient communication in a professional setting.
Figure 1: NEC DTZ-12D-3 DT400 12-Button Display Phone. This image shows the black corded desk phone with its adjustable display unit. The display shows time, date, and soft-key options. The phone features a standard dial pad, 12 programmable function keys, and dedicated buttons for speaker, transfer, redial, and navigation.
Key Components:
- Handset: For private conversations.
- Display Screen: Shows call status, time, date, and menu options.
- Programmable Feature Keys (12): Customizable buttons for speed dials, line access, or specific functions.
- Dial Pad: Standard numeric keys (0-9, *, #) for dialing.
- Navigation Keys: For scrolling through menus and lists.
- Speaker Button: Activates the speakerphone function.
- Transfer Button: Used to transfer an active call to another extension.
- Redial Button: Dials the last number called.
- DND (Do Not Disturb) Button: Activates/deactivates the Do Not Disturb feature.
Setup
1. Unpacking
- Carefully remove all components from the packaging.
- Verify that all items are present: phone unit, handset, coiled handset cord, and telephone line cord.
2. Connecting the Handset
Connect one end of the coiled handset cord to the handset and the other end to the handset jack located on the side or back of the phone unit.
3. Connecting to the Telephone Line
Plug one end of the telephone line cord into the LINE jack on the phone unit and the other end into a standard telephone wall jack.
4. Connecting Power
This phone is designed for corded electric operation. Ensure it is connected to a compatible telephone system that provides power, or use the appropriate power adapter if supplied separately (check your system's requirements).
Operating Instructions
Making a Call
- Lift the handset or press the Speaker button.
- Dial the desired telephone number using the dial pad.
- Wait for the call to connect.
Answering a Call
- When the phone rings, lift the handset or press the Speaker button.
Using Programmable Feature Keys
The 12 programmable keys can be configured for various functions such as speed dialing, line access, or system features. Consult your system administrator for specific programming details and assigned functions.
Caller Identification (Caller ID)
If subscribed to Caller ID service, the incoming caller's number and name (if available) will be displayed on the screen before you answer the call.
Transferring a Call
- During an active call, press the Transfer button.
- Dial the extension or number to which you want to transfer the call.
- Wait for the recipient to answer, then announce the call and hang up. Alternatively, you may hang up immediately for an unsupervised transfer.
Redialing the Last Number
Lift the handset or press the Speaker button, then press the Redial button to call the last dialed number.
Do Not Disturb (DND)
Press the DND button to activate or deactivate the Do Not Disturb feature. When active, incoming calls may be redirected to voicemail or a busy signal, depending on system configuration.
Maintenance
Cleaning
- Wipe the phone's exterior with a soft, damp cloth.
- Do not use harsh chemicals, abrasive cleaners, or excessive moisture.
- Ensure the phone is disconnected from the power source before cleaning.
Storage
Store the phone in a cool, dry place away from direct sunlight and extreme temperatures when not in use for extended periods.
Troubleshooting
No Dial Tone
- Check all cable connections, especially the telephone line cord.
- Ensure the phone system is operational.
- Test with another phone if available to rule out line issues.
Display Not Working
- Verify the phone is properly connected to the system and receiving power.
- Adjust the display contrast if applicable (refer to system administrator).
Cannot Make or Receive Calls
- Check if the DND feature is accidentally activated.
- Ensure the telephone line is active.
- Contact your system administrator for assistance with line configuration.
Specifications
| Feature | Detail |
|---|---|
| Model | DTZ-12D-3 DT400 |
| Brand | NEC Co |
| Telephone Type | Corded |
| Color | Black |
| Material | Plastic |
| Item Weight | 2.9 pounds |
| Package Dimensions | 12.28 x 9.21 x 4.61 inches |
| Power Source | Corded Electric |
| Dialer Type | Single Keypad (tone dialing) |
| Answering System Type | Digital |
| Multiline Operation | Single-Line Operation |
| Caller Identification | Yes |
| Compatible Devices | Traditional telephone networks (PSTN, ISDN), potential integration with other communication devices. |
Warranty and Support
For warranty information and technical support, please refer to the documentation provided by your system vendor or contact your NEC authorized dealer. As this product may be a renewed item, specific warranty terms may vary from new products. Please consult your purchase agreement for details.
For further assistance, it is recommended to contact your IT department or the telecommunications system administrator responsible for your NEC phone system.
