Title says it all. Yesterday (2-2-15) I upgraded my galaxy s5 to lollipop. Tonight I enabled hd calling (VoLTE) for my phone. I restarted my device as per instruction. When I turned it on I had the toggle to enable and disable HD calling. Ever since then I can't call or receive calls. It will ring once or twice then say something along the lines of "you have reached a non-working number" even after turning off HD calling and restarting phone it won't work... Help! I'm running android 5.0