VoIP-Audioprobleme beheben
Audioprobleme gehören zu den frustrierendsten Aspekten der VoIP-Telefonie – abgehackter Sound, einseitiges Audio oder völlige Stille. Diese Seite behandelt die häufigsten Probleme, die wir sehen, mit praktischen Schritten, die Du unternehmen kannst, um sie zu beheben.
Wenn Dein konkretes Problem hier nicht aufgeführt ist, keine Sorge. Viele der hier verlinkten Anleitungen können trotzdem helfen, Dein Problem zu lösen – auch wenn Du die eigentliche Ursache nicht kennst. VoIP-Probleme lassen sich oft auf dieselben wenigen Übeltäter zurückführen – diese Seiten decken sie ab.
Ist Dein Audioproblem hier aufgeführt?
Problem | Settings to Check | Why It Helps / What It Means |
Time-outs or dropped calls | Disable SIP ALG:  SIP ALG
Enable keep-alive.
Check your router/firewall:
 Firewall-Konfiguration | SIP ALG often breaks VoIP. Keep-alive maintains session. Firewall/router issues can kill calls. |
Device not registered | Check SIP credentials, NAT settings | If not registered, your device isn’t connected to the VoIP server—no calls are possible. |
One-way audio | Open and forward RTP ports properly | RTP handles voice traffic. If ports are blocked, audio can't flow in one or both directions. |
Getting error code when dialing | Check the SIP response/error code list | Error codes reveal what’s wrong (e.g. auth failed, not found, etc.). Decoding them is key. |
No audio during VoIP calls | - Connect phones directly to the modem/router, avoiding multiple routers: How to Detect and Fix Double NAT Issues
- Restart the modem/router.
- Lower firewall security settings
- Consider placing the modem in bridge mode and using a MikroTik router.
- Disable SIP_ALG on the modem. | By addressing these points, you ensure the connection is stable, secure, and continuously active, reducing the chances of audio dropping during calls. |
My Audio drops exactly after 15 minutes | - The router/firewall may terminate the SIP connection due to inactivity. After 15 minutes, we check the SIP connection and if there's no response, the audio is dropped. Ensure Keep alive is enabled on your device. For details, check your device's wiki page.
- If Session Timer is enabled, disable it, as it's not needed on our platform. | By addressing these points, you ensure the connection is stable, secure, and continuously active, making sure it won’t happen again. |
Specific Webphone Issues | ||
I have audio problems on my ASUS laptop | Many ASUS laptops have a default "noise cancellation" feature that may interfere with the Voys Webphone. Ensure this feature is turned off when using the Webphone. If you can’t locate this setting, consult your IT department or check the ASUS support page. | When the feature is turned off there is a good option that you don’t have audio problems anymore. |
Poor Audio Quality with the Webphone | - Check if your headset or laptop has an option to adjust the microphone volume. Increasing the microphone volume might help improve audio quality.
- Connect your computer to the internet via a network cable; this connection is more stable than via WiFi.
- For a more detailed analysis of possible causes of audio problems, and what you can do about them Audioprobleme auf dem Laptop (Webphone) oder Deinem Tischtelefon | |
I hear music when I answer or make calls with the Webphone | Your headset is likely connected to another program or device that’s playing the music. We don’t have any feature to play music through the Webphone. |
Allgemeine Lösungsansätze zum Ausprobieren
Unten findest Du allgemeine Troubleshooting-Seiten, die zugrunde liegende Faktoren behandeln, die in einfachen Anleitungen oft übersehen werden. Diese Schritte zeigen nicht immer die genaue Ursache auf, können aber dennoch hartnäckige Audioprobleme lösen.
Probier sie aus – manchmal ist die Lösung nicht offensichtlich, aber sie ist da.
Verschlüsseltes Anrufen: Halte Hacker aus Deinen Gesprächen raus
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