After being on and off phone with different tech support reps this morning it seems my area is in between two LTE towers but not in an "Excellent" LTE area. So when I have advanced LTE turned on, it is not picking up a good enough signal to be great quality and worth using. When I have it off, my call quality is excellent. This only just recently became an issue. I'd say a week and a half before the stagefright patch came out. Can what they are telling me actually be the case, or was it just to appease me for now. I've never had a problem with advanced LTE being on before until recently. Any help on the matter would be greatly appreciated.