I have a Vodafone Easy Box 904 LTE. At first I thought alone when I connect the antenna I have better reception, so Easy Box placed on the window sill, connected the antenna cable out of the window and mounted antenna on the house wall. But it has not changed, no antenna there were 4/10 beams on the Easy Box and antenna also.
Since I was a little disappointed, but not same abandoned. Now I have them mounted at the highest point of the roof and geared toward Sendemast and behold, WOW 9/10 bar and my bandwidth over LTE is thus also correspondingly well.