My mom, sister, brother-in-law, and brother all have Cricket phones. I talked to my mm around 7pm last night and all was fine. This morning I got off work at 7am and tried to call and make sure my sister got my nephew up for school and she could not hear me. I called my mom, my brother-in-law, and brother and they can't hear me. I called my uncles land line and he could hear me, I tried a co-workers cell that is on Boost and he could hear me fine too. Just seems to be phones on cricket that have a problem hearing me. Texting works fine. Any ideas?