What does the strike through the 4G LTD at the top of my screen mean?

[AC Question]

My phone typically shows the 4G LTE next to signal strength at the top of my phone screen and it has a line through it.

 

[B. Diddy]

Welcome to Android Central! Which phone? Show us a screenshot: http://forums.androidcentral.com/am...ide-how-post-screenshots-android-central.html