How to strengthen the signal of the cellular network within the apartment?

Question

Signal processing

Greetings!

Such a situation:

- In one room of the apartment, mobile Internet works well on a phone with a Megafon SIM card. And while there is no signal from the phone with Tele2.
- In the other room, Tele2 catches, but does not catch Megaphone.
- At the same time, the Internet from the phone with Tele2 is distributed to several more devices, but you can’t put a Wi-Fi router here, because. Simka must be in the phone.

The question is - is it possible to somehow relay the signal of the mobile network from the room where it is - to the whole apartment?
So that it is accepted by all phones with any operators.

Answer 1

Install a cellular amplifier: https://www.vegatel.ru/komplekti/gsm-900/titan-900-led
But this is an overhead, I'm sure that your problem can be solved easier.