Troubleshooting Crackling on Yealink W56H Handsets
If you are experiencing crackling sounds during calls on your Yealink W56H cordless handset, this guide will help you diagnose and resolve the issue.
1. Check the Base Station Location
-
Ensure the base station (W60B or W56 base) is not too far from the handset.
-
Position the base in a central, elevated location.
-
Avoid obstructions such as thick walls, metal objects, or nearby devices (Wi-Fi routers, microwaves, cordless headsets) that may cause interference.
2. Power Cycle Devices
Refreshing the connection often clears audio issues:
-
Handset: Turn off, remove and reinsert the battery, then power on again.
-
Base station: Disconnect power for 10 seconds, then reconnect.
3. Test the Hardware
-
Swap batteries with another W56H handset to rule out battery faults.
-
Speakerphone vs. earpiece test: Make a test call using both. If crackling occurs only on one, it may indicate a hardware fault in the speaker or earpiece.
4. Reset the Handset
If the issue continues, reset the handset:
-
Go to: Menu → Settings → System Settings → Reset Handset
-
Enter PIN (default:
0000). -
Re-register the handset to the base station after reset.
If necessary, you can also reset the base station to factory defaults.
5. Inspect for Physical Damage
-
Confirm the handset has not been dropped or exposed to liquid.
-
Check the speaker grille and charging contacts for dust or debris. Clean with a dry cloth if needed.
6. Next Steps if Crackling Persists
If the crackling remains after completing the steps above:
-
It is likely a hardware fault.
-
Please contact Swazzy Support to process a warranty claim or arrange a replacement handset.
Tips for Preventing Call Quality Issues
-
Keep the base station away from interference sources (e.g., Wi-Fi routers, microwaves).
-
Update handset and base station firmware regularly.
-
Avoid using the handset while charging if you notice audio interference.
Related Articles
How to Securely Share Files Online Without Compromising Your Privacy
Sharing files is part of daily work and life, but doing it without the right precautions can expose your data to hackers, leaks, or unauthorized access. This guide explains how to share files securely using trusted platforms, encryption tools, and ...How to Set Up and Troubleshoot Antivirus Software to Protect Your Device from Online Threats
In today’s digital world, protecting your device from malware, viruses, and other threats is crucial. This guide will walk you through setting up antivirus software, choosing the right one, and troubleshooting common issues to ensure your system ...How to Open Another Person's Mailbox in Outlook for the Web
If you've been granted permission to access another person's mailbox in Outlook for the web, you can follow these simple steps to open and manage their mailbox alongside your own. Here's a step-by-step guide to help you get started: Step 1: Sign in ...How to Send Emails from Another Mailbox in Outlook
Overview If you need to send emails as another mailbox in Microsoft Outlook, you must have the appropriate permissions (Send As or Send on Behalf). This guide explains how to enable and use the "From" field in Outlook to send emails from another ...How to Enable Device Encryption for Enhanced Security
Device encryption is one of the most important steps you can take to protect your personal data. By converting your data into unreadable code, encryption ensures that only you (or authorized users) can access it. This article will walk you through ...