Unwanted calls from intrusive advertisers, scammers, or simply former acquaintances can become a serious problem for any phone user. The telecom operator Tele2 offers several effective ways to solve this problem, allowing you to completely isolate yourself from a specific subscriber. Blocking a number can be done either directly through the settings of your Android smartphoneor using special services of the operator itself.
In this article we will analyze in detail all the available methods that do not require additional monthly payments if you use the standard functions of the device or basic USSD commands. The choice of a specific method depends on whether you simply want not to hear beeps or completely hide the existence of your number for the caller. It is important to understand the difference between software blocking at the phone level and network blocking on the operator’s side.
Modern versions of the operating system Android provide built-in call filtering tools that work stably and do not consume Internet traffic. However, if calls come from different numbers or you need a more stringent restriction, it is better to use the services of a network. Below we will look at step-by-step algorithms for each option.
Using built-in Android functions for blocking
The fastest and free way to stop receiving calls from a specific subscriber is to use the standard functionality of your operating system. The interface contact book or call log on different smartphone models may differ, but the logic of actions remains the same for most devices based on Android.
First, open the “Phone” application and go to the “Recent” or “Journal” tab. Find the number you want to block from the list. On most devices, just click on the information icon (usually the letter “i” in a circle or an arrow) next to the number or hold the number itself with your finger for a couple of seconds.
In the action menu that opens, select “Block” or “Block number”. The system may request confirmation of the action, warning that calls and messages from this subscriber will no longer be received. After confirmation, the number will automatically be added to black list your device.
It is worth noting that when using this method, the caller will hear standard beeps, and then a reset, or a message that the subscriber is busy, depending on the settings of your operator. The very fact of blocking will remain hidden for him, unless he decides to call from another phone.
⚠️ Attention: On some smartphone models (for example, Xiaomi or Samsung), the menu may be hidden under three dots in the corner of the screen. If you do not see the blocking option right away, carefully study all the available options in the contact card.
To make sure that the number is really blocked, you can go to the settings of the Phone application. Usually the path looks like this: Settings → Blocking numbers. Here you can see a complete list of banned contacts that you can manage: add new ones manually or delete old ones.
Blocking via USSD commands and Tele2 services
If the built-in functions of the smartphone do not seem reliable enough to you or you want the subscriber to hear a specific message about unavailability, you can use network services. The operator Tele2 provides the “Black List” service, which has paid and free options depending on the conditions of your tariff plan.
To activate the basic version of the service, it is often enough to enter a special USSD command. Type on the phone keypad *145# and press the call button. In the menu that opens, follow the onscreen instructions to add the number to the block list. This action does not require an Internet connection.
An alternative method is to use the command to add a specific number. The command format usually looks like *145*subscriber_number#, where the number is indicated in the format 9XXXXXXXXXX. After entering the command, you will receive an SMS notification that the blocking has been successfully activated.
It is important to distinguish between concepts: blocking at the phone level does not allow the call to reach you, but the network accepts it. Network blocking “Black List” rejects the call on the operator’s side, which can be useful if you are in roaming or areas with poor signal, where it is important to save battery resources.
It is also possible to activate the “Caller Identification” service for yourself in order to hide your ID on outgoing calls, but this is a separate function that does not affect incoming calls. To protect against spam, it is better to combine methods.
⚠️ Attention: The terms of the Black List service may change. On some tariff plans, the connection may be free, but a subscription fee for use is still charged. Check the exact information about tariffs in your personal account or by calling a short number
611.
☑️ Check before blocking
Managing blocking through your Personal Account and application
The most convenient and visually understandable way to manage contacts is to use digital service channels. The “My Tele2” mobile application or the web version of your personal account on the official website allows you to control the list of blocked numbers in real time.
To get started, you need to log in to the system using your phone number and password received via SMS. After logging in, find a section that may be called “Services”, “Services” or directly “Black List”. In modern versions of the interface, this item is often placed on the main screen.
Inside the blocking management section, you will see the “Add number” button. By clicking on it, you can enter the phone number manually or select a contact from your smartphone's phone book, if the application has the appropriate permissions. This allows you to quickly respond to new threats.
The advantage of this method is the possibility of detailed statistics. You can see how many times the blocked subscriber tried to call, and if necessary, temporarily unblock him or remove him from the list permanently. All changes are applied instantly throughout the network.
In addition, through the app you can configure the “White List” - a mode in which only selected contacts can call, and all others will be blocked by default. This is a radical but effective measure for complete isolation from the outside world during periods of rest.
What does a blocked subscriber see?
When a blocked user tries to call, he will hear short beeps, after which the connection will be disconnected. In some cases, depending on the network settings, he may hear an automatic message indicating that the subscriber is unavailable or busy. SMS messages sent from a blocked number will not reach the recipient, and the sender will not receive a delivery report.
Comparison of blocking methods: table of possibilities
To make it easier for you to choose the best option for protection against unwanted calls, we have prepared a comparison table of the main methods. It will help you evaluate the pros and cons of each approach depending on your current needs and phone model.
| Blocking method | Cost | Network dependence | Complexity of setup |
|---|---|---|---|
| Through the Android menu | Free | Doesn't depend | Low |
| USSD commands | Paid/Free* | Need signal | Average |
| Tele2 application | Paid/Free* | Internet required | Low |
| Third-party applications | There are free | Internet required | High |
As can be seen from the table, built-in tools Android are the most universal and do not require costs. However, network methods give more control and work even when the phone is turned off (in terms of accumulating call attempt statistics).
When choosing between free and paid options, proceed from the frequency of calls. If these are isolated cases, the functions of the phone will suffice. If you are attacked by a spam bot or collectors, it is better to connect the operator’s professional protection.
Third-party applications for enhanced protection
In cases where standard tools are not enough, specialized applications from the store come to the rescue. Google Play. apps like Call Blocker, Truecaller or Blacklist have advanced functionality, including databases of spam numbers.
Such applications work on the principle of filtering the incoming stream. They check the caller's number against their cloud database and automatically drop the call if the number is flagged by other users as fraudulent or advertising. This eliminates the need to manually enter each new number.
Installation of such software requires broad permissions to access contacts and call logs. This is necessary for the correct operation of the number identification algorithms. Be careful when choosing an application and read reviews so as not to install malware.
Many of these apps have free versions with basic functionality, which is quite enough for home blocking. Paid subscriptions usually provide access to cloud databases and automatic updating of lists of spam numbers.
⚠️ Attention: Using third-party applications may lead to increased battery consumption, as they work in the background and constantly analyze incoming calls. Monitor your device's power consumption.
Before installing any call blocking app, check its permissions. If a simple blocker requires access to your geolocation or microphone without obvious need, this is a reason to refuse installation.
Frequently asked questions (FAQ)
To conclude the article, we will answer the most popular questions that users have when trying to limit their social circle. These clarifications will help avoid common mistakes and misunderstandings.
Will the subscriber know that I have blocked him?
When blocking through the phone settings, the caller usually hears long beeps, as in a normal call, but you will not answer them. If you are using network blocking or Do Not Disturb mode, the caller may hear short beeps or an answering machine message. The operator does not send direct notification of blocking.
Is it possible to block a hidden number?
It is impossible to block a specifically “hidden” number (when “Hidden number” or “Anonymous” is displayed instead of numbers) using standard means, since the system does not have an identifier for blocking. However, you can activate the “Anonymous Call Barring” service, then calls from hidden numbers simply will not reach you.
Will blocking work if the phone is turned off?
Blocking at the smartphone level does not work when the phone is turned off. Network blocking (operator service) is always active, but you will not see call attempts until you turn on the device and receive a notification (if the service provides such a function) or check the statistics.
How to unblock a number if I made a mistake?
To unlock via phone, you need to go to the blacklist settings and delete the contact. Via USSD - use the delete command (usually *145*number# with a different operation code). In the application or Personal Account, just click the “Unblock” button opposite the number.
The most reliable way to avoid unwanted contacts is a combination of built-in blocking on the phone for known numbers and network filters for unknown spam calls.