Ever since iOS7.1 update on my iPhone 5, the 4G LTE icon has disappeared from the homepage. The 3G and 1x signals are spotty (at best). At times, I can't not hear the dial tone when dialing out. At times, I can't not hear the voice of caller when I slide to pick up the call. I brought these issues to 2 sales managers at a local coporate VZ store, none were helpful. The issues seemed non-existent when I was inside the store, but they persist after leaving the vicinity. I never had these issues with the previous iOS version. The sales managers seem clueless with the issues and try to chalk it up with VZ "service line" and then suggest for me to call VZ customer service hotline to work around the issue. I'm extremely not happy with the level of indifference I received from these so-called managers. It looks like I'd no longer be a VZ customer anytime soon.