T-Mobile Files Cease and Desist Against Verizon Over Ads

While that may be your experience, the same can be said about Sprint, TMobile, or AT&T, depending on which metal building and where.

There are too many variables involved to just make a blanket statement about all of Verizon's 4G signal based on your experience within metal buildings.

If you can provide hardcore facts or evidence to back up your argument, go for it.

That would be any wireless signal. Its called a Faraday cage. a metal building will block any radio signal. And the great thing about T-mobile is since they use the higher frequencies for their cellphones that their signal can hardly penetrate any building.