I'm trying to get someone service in a mobile home, I'm thinking the steel/aluminum construction or whatever it is is causing trouble. Calls just cut in and out really bad, but you step outside and it's fine. They have ATT DSL, 6MB I think, and an M-Cell and it's no better. I'm he phone says is connected to the M-Cell in the statusbar. Anything else I can try? The phone is a 5s, without the M-Cell it displays one bar, with the M-Cell it displays full bars. Internet speed seems ok, I ran a Speedtest and it showed the full 6 or 8MB, don't remember which now.