I don't know the cellular range in the room, maybe in that - failure, I had the signal range one line, and sometimes there was no signal. So I couldn't call either SMS or the internet. I didn't watch it in the hall I don't know, I didn't check it out, and outside it was OK. A fast free Wi-Fi network in the building saved me, and after that I am very happy with staying and part of the room, and I would love to go back to another room.
If there is a possibility, in the future, please try to get some GSM amplifier in the room or in the rooms.