A sudden lack of sound during an incoming call in a popular instant messenger can be an unpleasant surprise, especially if you are expecting an important conversation. Users of smartphones running Android often encounter a situation where the application works properly, but notifications arrive silently. This may be due to both the settings of the service itself and the limitations of the operating system.
To return sound alert, you need to sequentially check several levels of device configuration. From simple switches in the app interface to complex system permissions, each step plays a critical role. In this article, we will analyze in detail the algorithm of actions that will help restore the functionality of audio signals.
Sometimes the problem lies not in the settings themselves, but in a conflict between software versions or specific energy-saving modes. Understanding how Android manages notification priorities will allow you to avoid similar situations in the future. Let's start with a basic check of the settings inside the application itself.
Checking the internal settings of the Viber application
The first logical step is to diagnose the parameters directly inside the messenger. The developers have provided a flexible notification management system that allows you to mute the sound for specific chats or globally. Go to the main menu by clicking on the three bars in the lower right corner and select Settings.
In the list that opens, find the section Notifications. All key switches responsible for audio support of events are concentrated here. Make sure that the slider next to Sound is activated. If it is turned off, the application will show a visual notification, but will not make a single sound.
It is also worth paying attention to the choice of melody. The default setting may be silent or the system sound may be too quiet for your environment. By clicking on the item Ringtone, you can select a louder and more noticeable track from the list of files available on your device.
- 🔊 Check if the “Do not disturb” mode is set inside Viber itself.
- 🎵 Make sure that the selected the melody is not a damaged audio file.
- 📞 Separately check the settings for incoming calls and messages, as they may differ.
If you recently updated the application, the settings may have been reset to factory settings. Always recheck your settings after major software updates.
It is important to note that changes take effect instantly, but to be on the safe side, it is best to restart the application. Close it completely through the task manager and open it again. This ensures that the new configuration file with sound settings will be correctly loaded into RAM.
Android system permissions and notification management
Operating system Android has its own powerful notification management mechanism, which takes precedence over application settings. Even if everything is turned on in Viber, the system can block sound on a global level. To check, go to Settings your smartphone.
Find the section Applications or Applications and notifications. In the list of installed apps, find Viber. By clicking on it, you will be taken to the application card, where you need to select Notifications. Here you can see detailed statistics and switches for different categories of alerts.
Pay special attention to the category Incoming calls. In modern versions of Android (from 8.0 and above), each application has several notification channels. Make sure that the switch next to calls is active, and also check that the “Mute” checkbox is unchecked.
⚠️ Attention: In some shells (for example, MIUI or OneUI), notification settings may be hidden in the “Advanced” submenu or require an expanded view of the parameters.
☑️ Diagnostics of system rights
It also makes sense to check the notification importance level. The system allows you to set the priority: from “Minimum” to “Urgent”. It is recommended to set the status for calls High or Urgentso that the sound is played even when the screen is off or in lock mode.
Setting notification channels and sound categories
Starting with Android Oreo, the concept of notification channels has been introduced, which gives users granular control over how an application interacts with the user. In the case of Viber, this means separating sound signals for messages, calls and group chats.
By going to the application notification settings through the system menu, you will see a list of categories. Each of them is customizable. Click on the category text Calls (not on the switch, but on the name) to open a deep settings menu.
Here you can not only turn on the sound, but also choose whether the notification will pop up on the screen, vibrate the device, or ignore Do Not Disturb mode. If the slider Sound in this menu is turned off, no actions inside the messenger itself will help activate it.
| Notification category | Signal type | Importance | Recommendation |
|---|---|---|---|
| Incoming calls | Ringtone | High | Enable sound and vibration |
| Messages | Notification tone | Medium | Select prominent sound |
| Group chats | Notification tone | Low | At the user's discretion |
| Marketing/News | Mute | Minimum | Recommended to disable |
Why are settings reset channels?
Sometimes after updating the operating system, Android resets user notification channel settings to default values. This is a system protection mechanism that requires manual configuration by the user again.
Don't forget to also check the vibration settings in the same menu. Often, users turn off the sound, counting on vibration, but forget to activate it too. The combination of audible and tactile alerts ensures you'll never miss a call.
The impact of power saving and optimization modes
Modern smartphones strive to maximize battery life by aggressively limiting background app activity. Energy saving modes can “put you to sleep” Viber, prohibiting it from using the network and playing sound until you open the application yourself.
To exclude this factor, you need to add the messenger to the list of exceptions. In the battery settings, find the item Battery optimization or Energy saving. Find in the list Viber and select the option Do not optimize or Without restrictions.
On devices from Chinese manufacturers (Xiaomi, Huawei, Honor) there are additional levels of protection. In the Security or Phone Manager application, check the Autostartsection. Allow Viber to start automatically, otherwise the system will forcefully close its processes.
- 🔋 Disable the "Ultra-energy saving" mode if it is active.
- 🚀 Allow the application to run in the background.
- 🛡️ Add Viber to the whitelist of your antivirus or memory cleaner.
Aggressive battery optimization is the most common reason for the lack of sound in the background on new Android smartphones.
It is also worth checking if the global power saving mode is enabled in the notification shade. When activated, many system functions, including the volume of media and calls of third-party applications, can be programmatically lowered or disabled altogether.
Conflicts with Do Not Disturb mode and sound profiles
Mode Do Not Disturb (Do Not Disturb) is a powerful tool, but it is the one that most often becomes the culprit of silence. This mode can be activated manually, according to a schedule, or automatically when certain applications are launched.
Check the settings of this mode in the section Sound and vibration. Make sure not to add Viberto exceptions if you want to hear calls even in silence. Or temporarily disable the mode completely to test the hypothesis.
Pay attention to the physical sound switch (if your case has one) and software profiles. Some shells have a Vibration Only or Silent profile that is applied globally. Increase the volume sliders Media and Call to maximum for the test.
⚠️ Attention: Do not disturb mode may have a schedule activations (for example, from 23:00 to 07:00). Check the event calendar in the mode settings to make sure it doesn't turn on automatically at inopportune times.
Sometimes a conflict arises due to the connection of peripherals. If you have Bluetooth headphones or a smartwatch connected to your phone, the call audio may be redirected to them without being heard by you. Disable Bluetooth temporarily to check if this is the cause.
Radical methods: reinstalling and clearing the cache
If all the above methods do not work, the application configuration files may be damaged. In this case, clearing the cache and data will help. Go to Settings → Applications → Viber → Memory.
Press the button Clear cache. This is a safe operation that will not delete your conversations, but will reset temporary files that may cause audio playback errors. After this, reboot your phone.
If clearing the cache did not help, you will have to take a more radical step - Reset application data or a complete reinstallation. Before doing this, be sure to back up your chats in Viber settings (Settings → Account → Viber backup) so as not to lose your message history.
Path for complete clearing (for advanced):
Settings → Applications → Viber → Storage → Clear data → Delete
After re-installation and logging into your account, all sound settings will return to factory values, which will eliminate a software glitch. Often, it is a “clean” installation that solves problems caused by incorrect updating of the previous version.
Why is there sound in messages, but not in calls?
This indicates a problem with a specific notification channel “Incoming calls”. Check the settings of this particular category in the Android notification system menu, as it is managed separately from messages.
Is it possible to set your own ringtone from files on your phone?
Yes, in the Viber notification settings, when selecting a ringtone, click “Add” or the plus icon to select any audio file saved in the memory of your device.
Viber rings only when it is open, but is silent in the background. What's wrong?
Most likely, aggressive energy saving is enabled or background data transfer is limited. Check your battery settings and allow the application to run in the background without restrictions.
Resetting your phone will help fix the sound?
This is an extreme measure. Usually the problem is solved at the application or system settings level. Resetting your phone to factory settings should only be done if nothing else works and you are ready to lose all your data.
Does the Android version affect the presence of sound?
Yes, in Android versions 10, 11, 12 and higher, the logic of the notification channels has changed. On older versions, the settings were simpler; on new ones, a deeper check of system permissions is required.