Hi everybody, I seem to be having a major problem when making outgoing calls, (ie. to Voicemail and other contacts). Sometimes, whenever I try to call my voicemail or other people, I don't hear any ringing, and when the person picks up.. I hear no sound. This is usually fixed by clicking speakerphone then unclicking it, and I can hear people fine. But sometimes my sound works perfectly fine... but lately it's been on and off. I've tried a soft reset, and even went to T-Mobile to get a SIM card replacement, but it still happens on & off? I hear incoming calls perfectly fine, and receive text messages perfectly fine as well. Do you guys think this could be a software or 3rd party issue?