Voicemail on a smartphone is an indispensable tool that allows you not to miss a single important call, even if you are out of network coverage, in airplane mode, or simply cannot answer right now. Unlike simply missing a call, an answering machine allows the caller to leave a text or voice message that you can listen to at a convenient time.
On modern devices running an operating system Android the process of activating this function may vary depending on the phone manufacturer and your mobile operator. Some models have built-in applications for managing the answering machine, while others rely entirely on the network services of the communication provider.
In this material we will analyze in detail all the existing methods of activating and setting up a voice box. You will learn how to change the greeting, what code to dial for quick activation and what to do if standard methods do not work on your device.
Principles of operation of a voice box in mobile operator networks
Before moving on to the settings in the smartphone menu, you need to understand that voice mail is first and foremost network service. This means that messages are not physically recorded and stored in your phone's memory, but on the servers of your mobile operator. The smartphone only acts as a control panel and interface for listening to these recordings.
When a call comes to your number and you do not answer, the network forwards the call to a special answering machine server. This is where your greeting is played and the caller's speech is recorded. Therefore, even if you change your phone or lose your SIM card (by restoring the number with the operator), all saved messages will remain available.
It is important to note that connecting this service often requires separate activation through your personal account or USSD commands. Without prior activation on the operator's side, the settings on the phone may have no effect, since the network simply will not know where to redirect missed calls.
⚠️ Attention: The voicemail service may be subject to a fee. Tariffing usually occurs for minutes of listening to messages or for the very fact of connecting to the service. Be sure to check the terms of your tariff plan before activating.
Universal activation method via USSD codes
The fastest and most reliable way to enable an answering machine is to use special commands that are sent directly to the operator’s network. This method works on any phone, regardless of version Android or device model, be it budget Xiaomi or flagship Samsung.
Each major telecom operator has its own unique codes for managing services. Entering these commands in the Phone application instantly sends a request to the provider's server. If the service was not previously activated, it will be activated, and if it was disabled, it will be enabled again.
Below is a table with the main codes for popular telecom operators in the region. This data is current at the moment, but can be changed unilaterally by the operator.
⚠️ Attention: Interfaces and operator codes may change. If the above commands do not work, go to your operator's official application or website to clarify current USSD requests.
| Operator | Activation code | Disconnection code | Setting number |
|---|---|---|---|
| MTS | *111*157# | *111*158# | 0880 |
| Beeline | *110*09# | *110*090# | 0674 |
| MegaFon | *105*7# | *105*70# | 0500 |
| Tele2 | *155*611# | *155*610# | 611 |
After entering the activation command, you usually receive an SMS confirmation that the service has been successfully connected. Only after this does it make sense to proceed to setting up a greeting or checking the operation of the function through the phone menu.
Configuration through the standard "Phone" application
In "pure" Android and on many smartphones with minimal shell customization, voicemail management is built directly into the standard calling application. This method allows you to set the number to which calls are forwarded and quickly listen to new messages.
To start setting up, you need to open the application Phone, which usually has a green handset icon. Next, you should go to the settings menu, which is most often hidden behind three dots in the upper or lower right corner of the screen. In the list that opens, look for the section related to accounts or additional services.
Inside the settings menu, find the item Voicemail or Voicemail settings. By clicking on it, you will see a field where the current answering machine number is indicated. By default, your operator's number is often already registered there. If the field is empty, enter the number indicated in the table above or received from your telecom operator.
☑️ Checking settings in the Phone application
After saving the number, you can click on it to call. The system will connect you to the answering machine server, where the voice robot will offer to set up a greeting and set a PIN code to protect your messages from strangers.
To quickly listen to a new message, just hold down the number 1 on the Phone application keyboard. This is a standard hotkey for quickly dialing voicemail.
Using applications from Google and third-party services
With the development of technology, classic voicemail has evolved. Google offers a service Google Voice (in some regions) and a function Direct Voicemailthat allows you to receive text transcripts of voice messages directly in the dialer interface. This is especially convenient when it is not possible to listen to audio.
To use advanced features, you must make sure that you have installed the application Google Phone (Google Dialer). The settings of this application may contain the item "Spam and call screen" or "Operator settings". Here you can enable a function in which the Google robot itself answers suspicious calls and records the conversation. Google Phone They replace the operator's standard answering machine with their own cloud service. Such applications often provide more flexible greeting settings for different contacts and better visualization of messages.
There are also third party applications such as YouMail or analogues available in the store Play Market. They replace the operator's standard answering machine with their own cloud service. Such applications often provide more flexible greeting settings for different contacts and better visualization of messages.
⚠️ Attention: Third-party applications require all calls to be forwarded to their server. This may lead to double charging of calls (incoming to the application server + forwarding) or a conflict with the services of your operator.
Recording and changing greetings for subscribers
The standard greeting usually sounds dry and faceless: “The subscriber cannot answer.” To make the conversation more friendly or informative, it is recommended to record your own voice message. This can be done by calling the voicemail number.
After connecting to the answering machine and entering the PIN code (if it was set), follow the robot's voice prompts. Usually the menu prompts you to press a certain number, for example 3 or 5to record a new greeting. Dictate the text clearly and at a calm pace.
An example of a good greeting: “Hello, this is Alexey. I can’t answer the call right now, but leave a message after the signal and I will call you back as soon as possible.” Avoid specifying the exact time of your return for security reasons.
How to reset the greeting to the factory one?
If you recorded an unsuccessful greeting and want to return the standard one, call the voicemail number, enter the settings menu (usually the 0 or 9 key) and select the option "Reset greeting" or "Use standard."
Solving common problems and errors
Users often encounter a situation where the setup is completed, but voicemail does not work. The most common reason is a conflict with call forwarding. If you have manually configured to forward all calls to another number, the network will not be able to forward the call to the answering machine.
To check this, dial the universal code to cancel all forwardings: ##002# and press the call button. This command will reset all forwarding settings to the default values set by the operator, which often solves the problem with the inaccessibility of the voice box.
Another problem is the lack of network signal. Voicemail only works when the phone is registered to the network. If you are roaming, make sure that the call forwarding when unavailable service is activated for roaming networks as the settings may vary.
The code ##002# is a universal solution for resetting call forwarding conflicts that interfere with voicemail on most GSM networks.
If all else fails, perhaps the service itself is simply not activated on your SIM card. Even with the correct settings on the phone, without a connection on the operator’s server side, a miracle will not happen. Contact your provider's support team to check the status of the service.
Frequently asked questions (FAQ)
How can I find out if I have new messages without calling the number?
A cassette or envelope icon usually appears on the lock screen or in the notification shade. Also in the Phone application, on the Keys or History tab, you may see an unread message counter next to the answering machine button.
Can I change the voicemail PIN code?
Yes, this can be done through the answering machine menu. Call the voicemail number, enter the current PIN code and select change password in the settings. The standard PIN code is often equal to the last 4 digits of your number or the combination 0000/1234.
Why does the answering machine work too quickly, not giving time to answer?
This is the setting of the number of beeps before forwarding. Unfortunately, on most smartphones this cannot be changed through the menu. It is necessary to contact your telecom operator so that they increase the waiting time for a response on their side. Android this cannot be changed. It is necessary to contact your telecom operator to increase the waiting time for a response on their side.
Will voicemail notifications arrive if the phone is turned off?
No, the notification will only come after the phone is turned on and registered on the network. However, the message itself will be recorded on the operator’s server, regardless of the state of your device.