Wi-Fi and Data

For whatever reason, WiFi, Cellular data, and land line connections are available In the Backrooms. How this is possible is still a mystery.

WiFi
The backrooms has it's very own WiFi network, which will look like a blank space in your device's list of networks. Should you be inclined to use it, the password is "itheardyou"; however, using WiFi is not advised, even though the WiFi network is strong in Level 3, because it's an area that's known for having a lot of Entities hiding within the halls. Some people have noted that the beings are actually able to track your location, and you'll have a bad time if they do find you.

Cellular Data
Cellular Data seems to be a much safer option in the backrooms, should it be available to you. Coverage is much more sporadic than WiFi, but as such it is harder for the creatures of the backrooms to track your location using it. Despite this, it is not advised that cell data be used for longer than 10 minutes at at time, as any more usage dramatically increases your chance of detection.

Land Line
Land Line connections exist within the Backrooms, but are pretty much unusable for modern devices such as smartphones and laptops; they're exclusively used for phones that you can occasionally find in rooms most common on Level 4

Contacting the outside
Some groups have tried to use the WiFi and cellular data to directly contact people outside the backrooms. However, it seems that when speaking to people outside, these groups were killed by dangerous Entities. It is believed that the Entities are scared of the outside world and don't want people to find an exit. However, this is just speculation.

One thing to note is that Entities won’t become hostile towards you if you're only contacting people who themselves are already in the Backrooms.