Introduction
This manual provides detailed instructions for the VOCA V543 4G Flip Phone. It covers essential information for setting up, operating, and maintaining your device. Please read this manual thoroughly to ensure proper usage and to take full advantage of all features.

Image: The VOCA V543 4G Flip Phone, both closed and placed in its charging dock.
What's in the Box
Verify that all items are present in the package:
- VOCA V543 Flip Phone
- USB Cable
- Battery
- Charging Station
- User Manual
Setup
1. Inserting the SIM Card and Battery
- Carefully remove the back cover of the phone.
- Insert your 4G compatible SIM card(s) into the designated slot(s). Ensure the SIM card is correctly oriented.
- Insert the battery into its compartment, aligning the contacts.
- Replace the back cover securely.
2. Charging the Phone
The VOCA V543 can be charged using the included charging station or directly via the USB Type-C cable.
- Using the Charging Station: Connect the USB cable to the charging station and a power adapter. Place the phone into the charging station. The indicator light on the dock will confirm charging.
- Direct USB-C Charging: Connect the USB Type-C cable directly to the phone's charging port and a power adapter.

Image: The VOCA V543 4G Flip Phone securely placed in its charging dock, indicating ease of charging.
Operating Instructions
1. Power On/Off
To power on or off the phone, press and hold the Power/End Call button until the screen activates or deactivates.
2. Making and Receiving Calls
- Making a Call: Dial the number using the large keypad and press the Green Call button.
- Receiving a Call: Simply open the flip to answer an incoming call. Close the flip to end a call.
- Speed Dial: The phone supports speed dial for M1, M2, M3, and numbers 2-9. Refer to the settings menu to configure these contacts.

Image: The VOCA V543 4G Flip Phone displaying its large, easy-to-read keypad with dedicated speed dial buttons (M1, M2, M3).
3. Sending SMS Messages
Navigate to the 'Message' menu to compose and send SMS messages. The phone features a clear interface for easy text input.
4. SOS Emergency Button
The SOS button, located on the back of the phone, is designed for emergencies. Press and hold this button to automatically dial pre-set emergency contacts and send an SOS SMS message simultaneously.

Image: A hand pressing the SOS button on the back of the VOCA V543 4G Flip Phone, highlighting its emergency call and SMS feature.
5. Volume Adjustment
The phone features a volume boost function, accessible via a simple press on the side buttons, to increase call volume for clearer audio.
6. Display Settings (Eye Protection Mode & Large Characters)
- Eye Protection Mode: Activate this mode in the settings to reduce eye strain with a larger, green-tinted interface.
- Large Characters: The phone's interface is designed with large, clear characters and speaking numbers for enhanced readability and ease of use.
7. Phonebook (Photo Contacts)
Store your contacts with associated photos for easy identification. This feature allows for quick visual recognition of callers.
8. Camera
The integrated camera allows you to capture photos. Access the camera through the main menu.
9. Multimedia (MP3 Player & Radio)
Enjoy your favorite music with the MP3 player or listen to radio broadcasts. These features are accessible via the main menu.
10. Tools (Alarm, Bluetooth, Flashlight)
The phone includes several useful tools:
- Alarm: Set multiple alarms for reminders.
- Bluetooth: Connect to compatible Bluetooth devices.
- Flashlight: A built-in flashlight for convenience.
11. Low Battery Notification
When the battery level reaches 15%, the phone automatically sends an SMS notification to pre-selected emergency contacts, ensuring family members are aware.

Image: The VOCA V543 4G Flip Phone screen showing a low battery warning and an example of the SMS notification sent to emergency contacts.
12. Remote Control SMS
The V543 offers remote control functionality via SMS. Authorized contacts can send specific SMS commands to perform actions like creating contacts, setting SOS numbers, configuring alarms, restarting the phone, or performing a factory reset.

Image: Illustration of the VOCA V543 4G Flip Phone's remote control SMS feature, showing how commands can be sent to manage phone settings.
For more details on remote control features, visit senes.ai.
13. Language Settings
The phone supports multiple languages. You can change the display and writing language through the settings menu to suit your preference.
Video: A demonstration of various features of the VOCA V543 Flip Phone, including flip-to-answer, backlit buttons, SOS function, low battery notification, large characters, volume boost, eye protection mode, charging, USB-C charging, multi-language support, SMS, photo contacts, camera, MP3/radio, alarm, Bluetooth, and flashlight.
Maintenance
- Keep the phone dry and away from extreme temperatures.
- Clean the screen and keypad with a soft, dry cloth.
- Avoid dropping the phone or subjecting it to strong impacts.
- Use only VOCA-approved accessories for charging and optimal performance.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Phone does not power on | Low battery or battery not inserted correctly. | Charge the phone for at least 30 minutes. Ensure the battery is properly seated. |
| Cannot make or receive calls | No SIM card, poor network signal, or SIM card not activated. | Check SIM card insertion. Move to an area with better signal. Contact your service provider. |
| Short battery life | Heavy usage, 4G network consumption, or aging battery. | Reduce screen brightness. Limit background applications. Consider replacing the battery if it's old. |
| SOS button not working | Emergency contacts not set up. | Go to SOS settings and configure emergency numbers. |
Specifications
| Feature | Detail |
|---|---|
| Brand | VOCA |
| Model Number | V543 |
| Operating System | VOCA OS |
| Screen Type | Foldable (Flip) |
| Screen Size | Main: 6.5 inches (internal), Front: 4.5 cm (external) |
| Resolution | Main: 720 x 1280, Front: 480 x 800 |
| RAM Size | 48 MB |
| Memory Storage Capacity | 1 GB |
| CPU Speed | 1 GHz |
| Connectivity | USB Cellular |
| Charging Port | USB Type-C |
| Battery Type | Lithium-ion |
| Special Features | Dual screen, SOS button, Large buttons, Charging dock, Low battery SMS notification, Remote control SMS, Photo contacts, MP3 player, Radio, Alarm, Bluetooth, Flashlight. |
| Wireless Carrier | All carriers |
Warranty & Support
The VOCA V543 Flip Phone comes with a manufacturer's warranty. For specific warranty details and support, please refer to the documentation included with your product or visit the official VOCA website.
For additional assistance, you may contact VOCA customer support through their official channels.




