In the modern rhythm of life, there is often a need to have two or more phone numbers: one for work, another for personal calls, and a third for registration in instant messengers and services. The mobile operator Tele2 offers its subscribers flexible solutions to implement this task. Users of smartphones based on Android often look for ways to connect a second line for free, so as not to pay for the maintenance of an additional number if it is rarely used.
There are several legal and technical ways to organize the work of two numbers on one device. This could be the physical installation of a second SIM card, the use of technology eSIM, setting up forwarding or connecting a virtual number through special applications. It is important to understand the difference between a physical SIM card and virtual services, since their tariff conditions and activation methods are significantly different.
In this article we will analyze in detail all the available methods that allow you to implement the function of two lines on your smartphone without a monthly subscription fee for the very fact of the existence of a second number. We will look at system settings Android, network capabilities Tele2 and third-party solutions that will help you manage communications as efficiently as possible.
Dual SIM smartphones: physical connection of the second SIM
The most reliable and common way to have a second line is to use a smartphone that supports two physical SIM cards. The vast majority of modern devices are Android equipped with a hybrid slot or two separate connectors. If you already have an old SIM card Tele2that you do not use, you can simply insert it into the second slot.
To activate the second line in the phone settings, you need to go to the network management section. The path may differ depending on the firmware version and shell manufacturer, but usually it looks like Settings → Connections → SIM card manager. Here you can enable the second card, give it a name (for example, “Work”) and select for which tasks it will be used by default.
If you do not have a second physical card, you can order an additional SIM card in a communication store or through your personal account. Operators often hold promotions that allow you to get a second SIM card for free or with a nominal fee, provided you subscribe to a certain tariff. However, it is worth remembering that even if the connection is free, the tariff plan on the second card may involve a subscription fee.
After installing the card, the system Android will offer to configure preferences for calls and the Internet. You can select a mode in which for outgoing calls the system will always ask which line to make the call from. This gives complete control over expenses and allows you to separate communication flows.
- 📱 Check for a free SIM card slot in the tray of your smartphone.
- ⚙️ Activate the second card in the menu
Settings → Network and Internet. - 💬 Assign different ringtones for each SIM card to understand which number is being called.
eSIM technology: virtual second line without plastic
Technology eSIM (embedded SIM) is becoming increasingly popular among owners of flagship smartphones on Android. This is a built-in chip that allows you to download a carrier profile programmatically, without the need to insert a physical plastic card. For subscribers Tele2 this is a great way to get a second number without taking up a second slot in the device.
Connecting eSIM to Tele2 is often free or costs minimal money depending on the operator's current promotions. The activation process occurs through a QR code, which can be obtained in your personal account or in a communication shop. After scanning the code with the smartphone's camera, the profile is loaded into the device's memory, and the second line becomes active.
The main advantage of eSIM is that you can store several profiles at the same time, although you can usually only actively use one or two, depending on the phone model. Switching between profiles occurs in the settings in a couple of seconds. This is ideal for those who travel frequently or want a temporary number for specific tasks.
⚠️ Attention: Not all Android smartphone models support eSIM technology. Before attempting to connect, make sure that your device has the appropriate module and is unlocked to work with Russian operators.
Setting up an eSIM in the system Android is similar to setting up a physical card. You can assign an eSIM profile for mobile data, and leave the physical card for voice calls, or vice versa. It is important to monitor the balance on the virtual number, as some tariffs may require regular replenishment.
Before deleting an eSIM profile from your phone settings, make sure that you have a backup communication method or saved a QR code, since restoring a deleted profile may require contacting the operator again.
Forwarding service: combining numbers
If your goal is not to have two active lines at the same time for outgoing calls, but simply not to miss calls to the second number, then setting up forwarding is the ideal option. This network function Tele2 allows you to redirect all incoming calls from one number to another. Thus, the second number may be in another phone or simply “sleeping,” but you will always be in touch.
Forwarding is controlled through USSD commands or the phone menu. To activate unconditional forwarding (when the call immediately goes to another number), use the command 21*phone_number#. For example, to forward calls to the number +79991234567, you need to dial 21*79991234567# and press the call button.
It is important to take into account the tariffs for this service. Depending on your tariff plan Tele2, forwarded calls may be charged as outgoing calls from the main number to the number where the forwarding is going. In some tariffs, this service is included in the package of minutes, in others it is paid separately.
| Forwarding type | USSD activation command | USSD deactivation command | Description |
|---|---|---|---|
| Unconditional | **21*number# |
##21# |
All calls are immediately transferred |
| If busy | **67*number# |
##67# |
Only when you speak on telephone |
| If unavailable | **62*number# |
##62# |
When the phone is turned off or out of range |
| If there is no answer | **61*number# |
##61# |
When you do not answer handset |
Using forwarding allows you to actually have a “second line” on one device, receiving calls from different numbers on one SIM card. This saves space in the slot and battery power, since the radio module works only with one network.
☑️ Check before setting up forwarding
Applications for virtual numbers on Android
There is a category of applications that allow you to get a second phone number programmatically using an Internet connection (VoIP). For the operator Tele2 and Android users, this can be a way to get an additional number for free or for a nominal fee, linked to your account in the application.
One of such solutions is the Tele2.Business service or corporate solutions of the operator, which are sometimes available to individuals in the form of a virtual PBX. There are also third-party applications from Google Playthat provide virtual numbers. However, you should be careful: many free applications offer numbers from other countries or temporary numbers that are not suitable for registering in banking applications or important services.
When using such applications, the quality of communication directly depends on the speed and stability of your Internet connection Tele2. If you are in an area with poor 4G/LTE coverage, voice quality may suffer. However, for incoming calls and registration in instant messengers, this is a completely working option.
Some applications allow you to transfer your existing number to the cloud (eSIM applications from operators), but most often it is about getting a completely new digital identifier. Before installation, carefully read the reviews and privacy conditions.
⚠️ Attention: Virtual numbers from free applications are often not accepted by delivery services, taxis and banks for identity verification. Use them only for minor tasks.
Why do some applications ask for access to contacts?
Most calling applications request access to contacts to sync the phone book and display the names of callers. If you do not want to transfer your data, you can deny access, but then instead of names you will only see numbers.
Setting up two lines in the Android interface
After you have physically or virtually connected the second line, it is critically important to correctly configure the behavior of the system Android. An incorrect configuration can lead to the Internet working slowly and calls being made from an unexpected number, which will entail unnecessary costs.
In modern versions Android (starting from 9.0 and higher), the interface for managing two SIM cards has become very clear. Icons of both SIM cards often appear at the top of the screen in the notification shade, allowing you to quickly turn them on and off. This is convenient if you want to temporarily leave only one line active to save energy.
Particular attention should be paid to setting up mobile data. The system allows you to select which SIM card will be used for data transfer. It is usually logical to choose a card that has an unlimited tariff or a large gigabyte package. The second card at this moment will work only in 2G/3G mode for voice communication, which also saves battery.
To manage expenses, it is recommended to set traffic limits and control the balance through the “My Tele2” application. If one of the cards is a backup and is rarely used, make sure that paid subscriptions are disabled on it, which could be activated accidentally.
Correctly setting the priority of SIM cards for the Internet and calls in the Android menu allows you to avoid accidental charges and optimize the connection speed.
Possible problems and solutions
When using two lines on one device, users may encounter a number of technical difficulties. The most common problem is the network disappearing on one of the SIM cards while talking on the other. This is due to the architecture of the radio module: if it does not fully support the technology DSDS (Dual SIM Dual Standby), then when there is an active voice call on the first card, the second one may temporarily become unavailable.
Another common problem is confusion with choosing a number for sending SMS. Messengers and banking applications sometimes remember the last used SIM card and try to send a verification code through it. If there is no money on this card or it is blocked, you will not receive the code. The solution is simple: before sending an important message, manually select the desired SIM card in the system dialog box.
There may also be problems with fast Internet switching. If you are playing an online game or watching a video, and the system automatically switches the Internet to a second card with a poor signal, the connection will be interrupted. In the settings Settings → Network and Internet → Mobile network you can disable the "Allow mobile data switching" function to fix the Internet on the main card.
- 📉 If the second SIM card constantly loses the network, try changing the network mode for it on
3G/2Gin the settings. - 🔋 Using two active lines increases battery consumption by 15-20%, carry a power bank with you.
- 🔄 If the network fails, reset the network settings in the menu
System → Reset settings.
⚠️ Attention: Tariff conditions, eSIM connection costs and the availability of promotions can be changed unilaterally by the telecom operator. Always check the latest information about free connection of a second line in the official My Tele2 application or on the operator’s website.
FAQ: Frequently asked questions
Is it possible to connect a second Tele2 line completely free of charge forever?
Completely free content of a second number without any conditions is rare. Usually, only service connection or SIM card issuance is offered free of charge. Free service often requires you to perform a certain number of paid actions per month or activate options. Check the conditions of a specific tariff.
Will the Internet work on the second SIM card if I speak on the first?
It depends on the capabilities of your smartphone. If the phone supports 4G technology on both SIM cards simultaneously (4G+4G mode), then the Internet will work. On older models, when talking on the first card, the second one can switch to 2G, where the Internet is very slow or absent.
How to transfer your old number to an eSIM in Tele2?
To transfer a number to an eSIM, you need to contact a Tele2 communication salon with a passport or use the SIM card replacement function in your personal account, if it is available for your region and tariff. The old plastic card will stop working.
Why don’t SMS messages come to the second SIM card?
Check whether the second SIM card is blocked in the phone settings. Also make sure it has a positive balance. Sometimes the problem is solved by rebooting the smartphone or rearranging the SIM cards in the slots.