Brand: D-Link
Category: Networking
Document Type: Manual
Language: EN
Manual for DWR-720/PW
Uploaded: Sept. 12, 2025, 4:27 a.m.
Manual Publish Date: 2018-09-01
Warranty Information
Warranty information is not explicitly detailed in this section of the manual.
Basic Operations:
- Powering On/Off: Press and hold the [Red Power Key] to turn the device on or off.
- Making Calls: Enter a number and press the [Green Dial key] or pick up the handset and dial.
- Answering Calls: Press the [Green Dial key] or pick up the handset.
- Ending Calls: Press the [Red Power key] or hang up the handset.
- Wi-Fi: Access Wi-Fi settings to connect to available networks.
- SMS: Send and receive text messages.
- Contacts: Manage your phonebook entries.
- File Management: Access and manage files on the microSD card.
- Music Player: Play audio files.
- FM Radio: Listen to FM radio stations.
Troubleshooting and error codes
| Problem/Symptom | Solution |
| Enter PIN code | Enter the SIM card's PIN code. Contact your Network Provider if unknown. |
| Enter PUK code | If PIN is entered incorrectly three times, enter the PUK code. Contact your Network Provider if unknown. |
| "Insert SIM card" appears | Ensure the SIM card is correctly installed. Test in another device. Contact Network Provider for a SIM swap if faulty. |
| Poor sound quality, echo, noise | Hang up and redial. If persists, contact Network Provider. |
| "Not in-service area. Network failure." | Check signal indicator. Move to an area with better coverage. Contact Network Provider. |
| Battery Life Short/Decreases | Weak signal may cause the phone to search for signal constantly. Power off when not in use. Battery may be old and need replacement. |
| My phone screen keeps returning to the Home Page by itself | Check if the "Return to Home Page" feature is enabled and disable it if not desired. |
| I can't play my music/video file from the File Manager | Ensure the file format is supported. Refer to Page 14 for a list of supported formats. |
| I can't access the internet | Check data balance (dial *188# on Telkom). Purchase data (*180#). Verify correct APN settings (refer to Page 43). |
| Phone fails to boot | Ensure battery is charged. Check charger and USB connection. |
| Cannot send short messages | Verify the correct SMS address. Check recipient number validity. Ensure sufficient funds for SMS. |
| Cannot add entries into phonebook | Phonebook is full. Delete unused entries. |
| Cannot charge | Check charger functionality. Ensure proper plug contact. Battery may need replacement. Contact Operator or Supplier. |
| Cannot make calls | Check voice airtime balance (dial *188# on Telkom). Purchase airtime (*180#). |
| Cannot select some functions | Service may not be available or supported by the network location. Contact your Operator. |