Introduction
This manual provides essential information for the safe and efficient use of your Gigaset A690 A Duo cordless phone. Please read these instructions carefully before operating the device and retain them for future reference. The Gigaset A690 A Duo is a reliable cordless telephone system designed for home and small office environments, featuring an integrated answering machine and two handsets.
Safety Information
- Use only the power adapter and batteries supplied with the device.
- Do not expose the phone to extreme temperatures, direct sunlight, or high humidity.
- Avoid placing the base station near heat sources or other electronic devices that may cause interference.
- Keep the device out of reach of children.
- Do not open the device casing; refer all servicing to qualified personnel.
- Dispose of batteries according to local regulations.
Package Contents
Ensure all items are present in your package:
- 1 Gigaset A690 A Base Station
- 2 Gigaset A690 H Handsets
- 2 Handset Chargers
- 2 Power Adapters for Chargers
- 1 Power Adapter for Base Station
- 1 Telephone Cord
- 4 AAA Rechargeable Batteries (2 per handset)
- 1 User Manual (this document)
Setup
1. Battery Installation
- Open the battery compartment cover on the back of each handset.
- Insert the two supplied AAA rechargeable batteries, observing the correct polarity (+/-).
- Close the battery compartment cover securely.

Image: The Gigaset A690 A Duo cordless phone system, showing one handset docked in its base station and a second handset standing alone. This illustrates the primary components of the phone system.
2. Connecting the Base Station
- Connect the telephone cord to the "LINE" socket on the base station and to your telephone wall socket.
- Connect the base station's power adapter to the "POWER" socket on the base station and then to a mains power outlet.
- Place the base station on a flat, stable surface, away from other electronic devices.
3. Initial Charging
Place each handset into its respective charger. The display will indicate charging. For optimal battery performance, charge the handsets continuously for at least 8 hours before first use, even if the display shows a full charge earlier.
4. Handset Registration
The handsets are typically pre-registered to the base station. If a handset displays "Register Handset" or similar, follow these steps:
- On the base station, press and hold the registration/paging button for approximately 3 seconds. The base station will enter registration mode.
- On the handset, press the Menu key, then navigate to Settings > Registration > Register Handset.
- Enter the system PIN (default is 0000) and press OK.
- The handset will search for the base station and register. A confirmation message will appear on the display.
Operating Instructions
1. Making and Receiving Calls
- To make a call: Lift the handset, dial the number, and press the green call key
. - To receive a call: When the phone rings, press the green call key
. - To end a call: Press the red end call key
or place the handset back in the charger.

Image: A single Gigaset A690 H handset resting on its charging cradle. The display shows "INT" (internal call) along with the current time, illustrating the phone's idle state.
2. Menu Navigation
Use the navigation key (center button below the display) to scroll through menu options. Press Menu to open the main menu and OK to confirm selections. The back key (right soft key) allows you to return to the previous menu level.
3. Phonebook
- To open the phonebook: Press the down navigation key from idle screen.
- To add a new entry: Navigate to an empty entry or select New Entry, enter the name and number, then save.
- To dial from phonebook: Select the desired entry and press the green call key.
4. Answering Machine
The Gigaset A690 A Duo features an integrated digital answering machine.
- Activating/Deactivating: Access the answering machine menu via Menu > Answering Machine.
- Playing messages: Press the play button on the base station or access via the handset menu.
- Recording announcement: Follow the prompts in the answering machine menu to record a personal greeting.
5. Conference Call Capability
The system supports 5-way conference calls. This typically involves one external participant and up to four internal handsets. Refer to the on-screen menu for specific steps to initiate a conference call.
6. Caller Identification (Caller ID)
When a call comes in, the caller's number or name (if stored in your phonebook) will be displayed on the handset screen, provided you have subscribed to Caller ID service from your telephone provider.

Image: A Gigaset A690 H handset docked in its base, showing an incoming call on its display. The screen reads "Emma Martin" with a bell icon, demonstrating the Caller ID feature in action.
Maintenance
- Cleaning: Wipe the phone and base station with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Battery Care: Use only approved rechargeable AAA batteries. If the phone will not be used for an extended period, remove the batteries from the handsets.
- Environmental: Keep the device dry and free from dust.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No dial tone | Telephone cord not connected or faulty. | Check telephone cord connection to base and wall socket. Try a different cord. |
| Handset display is blank | Batteries are flat or incorrectly inserted. | Ensure batteries are correctly inserted and charge the handset for several hours. |
| Cannot make/receive calls | Handset not registered to base station. | Register the handset to the base station (see Setup section). |
| Poor sound quality/interference | Base station too far from handset or near other electronic devices. | Move handset closer to base. Relocate base station away from other electronics. |
Specifications
- Model Number: L36852-H2830-B101
- Product Dimensions: 8.66 x 6.3 x 3.35 inches
- Item Weight: 1.46 pounds
- Batteries: 4 AAA rechargeable batteries required (2 per handset)
- Power Source: Battery Powered (handsets), AC Adapter (base station)
- Answering System Type: Digital
- Conference Call Capability: 5-way
- Caller Identification: Yes (service subscription required)
- Color: Black
Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or visit the official Gigaset website. Keep your proof of purchase for warranty claims.
You can find more information and support resources on the Gigaset Store on Amazon.





