Smartphone Samsung Galaxy A31, despite its accessibility, has wide functionality, which is sometimes hidden from the eyes of the average user. One of the most popular functions in business correspondence and personal communication is the ability to capture audio data directly during a call. However, owners of devices based on Android often face restrictions imposed by Google security policies, which makes the process not obvious.
Recording a telephone conversation on Galaxy A31 can be implemented in several ways, depending on the version of the operating system and the region for which the device was released. In this article, we will analyze in detail the native capabilities of the phone, the nuances of third-party applications, and the legal aspects of using this function. You will receive comprehensive information on how to save an important dialogue without losing quality.
Checking for a built-in recording function
The first thing you need to do before looking for complex solutions is to make sure whether a standard option is available to you. In the latest shell updates One UI Samsung has returned the built-in call recorder for many regions, including the CIS countries. To check this, simply make a test call to any number, for example, to the operator's support service or to a friend.
During an active connection, carefully look at the call screen. The interface should contain a button labeled Record or microphone icon. If such a button is present, you are in luck: just click on it, and the system will begin saving audio to the device’s memory. After the end of the conversation, the file will automatically appear in the call log or application Dictaphone.
However, if there is no button, this does not mean the phone is broken. The lack of a feature is often due to the fact that the firmware is intended for the European or US market, where legislation strictly regulates the recording of private conversations. In this case, software blocks access to the audio stream at the system level.
⚠️ Attention: Even if the record button appeared after the update, make sure that the interlocutor hears a warning sound. In some jurisdictions, recording without notifying the other party may be illegal.
Setting up automatic call recording
If the standard function is active, it makes sense to configure it to work automatically. This will save you from having to search for a button on the screen every time during an important conversation, when your hands may be busy or the situation requires an instant response. Automation of the process ensures that no important dialogue is missed due to human error.
To activate this mode, go to the application Phone, which is a standard Samsung dialer. Click on the three vertical dots in the top right corner of the screen to open the settings menu. In the list that opens, select Call recording. This is where all the key audio recording control parameters are concentrated.
In the recording menu you will see a switch Auto-recording. Activate it. The system will prompt you to select the conditions under which recording will begin without your participation. You can set up recording of all incoming and outgoing calls or create a list of specific numbers, conversations with which you need to always save.
☑️ Setting up auto-recording
Also in this section you can enable the option of adding recordings to cloud storage if you use an account Samsung Cloud or synchronization with OneDrive. This is useful for saving the internal memory of the device A31, which is not dimensionless. The files will be uploaded to the network immediately after the conversation ends.
Using third-party recording applications
Owners of devices that do not have a built-in function due to regional restrictions will have to turn to third-party software. The store Google Play offers many solutions, but their effectiveness on modern versions of Android (10, 11, 12 and higher) varies greatly. This is due to the fact that Google has blocked third-party applications from accessing the audio stream during a call for privacy reasons.
However, some developers have found workarounds. The most popular and stable solution is the application Call Recorder - ACR from NLL. It can work in various compatibility modes, trying to capture sound through a speaker or microphone if direct access to the stream is blocked. Installation of such software requires advanced permissions.
When you first launch the application, you will be asked to configure the audio source. If the standard mode does not work, try switching it to Voice recognition or Fastmode. Sometimes it is necessary to turn on the speakerphone during a call so that the microphone can pick up the voice of the interlocutor, although this reduces the quality of the recording and creates inconvenience.
| Application name | Recording type | Requires Root | Sound quality |
|---|---|---|---|
| Call Recorder - ACR | Automatic/Manual | No (better with Root) | High/Medium |
| Cube ACR | Automatic | No | Medium (depending on the model) |
| Blackbox Call Recorder | Automatic | None | Low (via microphone) |
| TalkRecorder | Manual | None | Medium |
⚠️ Warning: Third-party apps may drain your Samsung battery faster A31, since they constantly monitor the status of the phone line in the background.
Why do some applications not record the voice of the interlocutor?
Starting with Android 9 and especially in Android 10+, Google has introduced strict restrictions on access to the call recording API for third-party applications. If the application does not have system privileges (root access) or is not built into the firmware by the manufacturer, it physically cannot receive a pure digital stream of the interlocutor’s voice. As a result, the recording is carried out only through the phone's microphone, picking up the sound from the speaker, which often leads to silence in the recording or a very quiet voice of the other party.
The influence of the Android version on the availability of the function
A critical factor determining the ability to record is the version of the operating system installed on your Samsung A31. The device was originally released with Android 10, but received updates to Android 11 and Android 12. With each new update, security policies become stricter, which directly affects the operation of voice recorders.
On Android 10, many third-party applications could still function relatively normally, using vulnerabilities or specific accessibility settings. However, on Android 11 and 12, the system forcibly mutes the audio stream for unverified applications. If you recently updated your phone and the recording stopped working, the reason lies precisely in the new security protocols Google.
Users sometimes consider rolling back the firmware version or obtaining root access to restore functionality. Obtaining superuser rights (root) opens full access to the system, allowing applications like ACR to record audio directly from the system kernel. But this process is complex and carries risks.
Before attempting to obtain root access, be sure to unlock the bootloader and make a full backup of your data via Samsung Smart Switch, as the process will reset the phone to factory settings.
Legal aspects and ethics of recording
The technical ability to record a conversation does not always mean legal permissibility of use this entry. The legislation of different countries treats the recording of telephone conversations differently. In the Russian Federation, according to Article 138.1 of the Criminal Code of the Russian Federation and the decisions of the Constitutional Court, recording a conversation by the participant in the conversation for personal purposes is not prohibited.
However, publishing such a recording in the public domain, transferring it to third parties or using it as evidence in court without the consent of the other party may entail legal liability. Violation of the confidentiality of correspondence and telephone conversations is a serious offense if certain procedural rules are not followed.
In the business environment, the practice of notice of recording is often used. Many companies automatically inform the client with the phrase “the conversation is being recorded” at the beginning of the dialogue. If you are recording a conversation with a private person, it is ethical to comply with the warning about recording the conversation at the beginning of the conversation.
⚠️ Attention: Using recordings obtained illegally (for example, using spyware installed remotely on another person's phone) is strictly prohibited and is punishable by law.
Where to find and how to manage saved files
After a successful recording, a logical question arises: where to look for the resulting file? When using Samsung's built-in feature, files are usually stored in a secure folder that can only be accessed through the app Phone or Dictaphone. A microphone icon will appear in the call log under the subscriber number; by clicking on it, you can listen to the dialogue.
If you used a third-party application, the files are most often saved in an open directory of internal memory. The standard path may look like /Internal Storage/CallRecorder or /Internal Storage/ACR. You can find them through any file manager, for example My Files, which is pre-installed on Samsung.
For ease of managing records, it is recommended to sort them regularly. Long conversations take up a significant amount of memory. You can transfer important files to the cloud or to your computer, and delete unnecessary ones. Some applications allow you to set up automatic deletion of recordings older than a certain number of days.
Samsung's built-in voice recorder saves files in an encrypted format that is only accessible through native applications, while third-party software saves files in standard MP3 or AAC, which can be opened on any device.
Frequently asked questions (FAQ)
Why did the record button disappear after updating the phone?
This is due to changing the regional firmware settings or updating Android security policies. Check your Phone app settings; the feature may have simply been disabled. If it has disappeared completely, your device is probably now identified as a device for a region where recording is prohibited.
Is it possible to record a conversation if the other party is on speakerphone?
Yes, but the quality of the recording may vary. When using the built-in function, the quality will be digital and clear. When using third-party applications without root access, the recording will go through the microphone, so it is better to keep the phone in a normal position and not on speakerphone to avoid echo.
How much memory space does one minute of conversation take?
On average, one minute of conversation in AAC or MP3 format takes up from 500 KB to 1 MB of memory. An hour-long conversation can take about 50-60 MB. For Samsung A31 with 64 or 128 GB of memory, this is not critical unless you store thousands of hours of recordings.
Will the other person hear a click or beep when you start recording?
When using Samsung's built-in feature, a beep or voice notification will play in some regions. Third-party applications usually record conversations quietly, without beeps, but this depends on the settings of the specific application and the version of Android.
How to transfer call recordings to a new phone?
If recordings were made with a built-in tool, they may not be transferred if you simply change the device due to encryption. It is best to copy the files manually via a computer or use the export function in the Voice Recorder application, if available, saving the files in an unprotected folder.