Yesterday my phone was being weird. when making calls, i could only hear if it was on speaker. So i turned it off, took the battery out, and when i put it back in and turned it on it still wasn't working. I would call my voicemail to see if I could hear, and when i put it on speaker, all i heard was a dialtone. now, my phone is working again (meaning i can hear the other person even when not on speaker, like normal) but my voicemail isn't. so basically when i go to call my voicemail all i hear is a dialtone, not even one ring at all. please help!!