Altell Touch pro calling problem!

[KHPower]

Hello all!

In the last week or so I have encountered a bothering problem with my touch pro from alltel. When I receive a call from someone Ill slide to answer and i will say "hello" and even shout into the phone but my callers cant hear me and then the phone will automatically disconnect withing 8 or so seconds. Similary when I make a call the recipient will answer and they cannot hear me. That being said , it does function 30% of the time and I an make and recieve calls fine. I have hard reseted the phone twice to clean up any programs that could be aiding in this issue. The only app i have installed other than the rom apps is sms fix(that fixes my sms sent notification) so basically its all stock.

Could this be a hardware problem? I never had these problems for the 5 months I had this phone , well only when I used diamond tweak I had a issue with answering the phone while a data connection was on but I dont use that anymore. I have noticed that the newer alltel rom that I installed has its ups and downs , still buggy.

Any help? or should I just send in for a warranty replacement?

Thanks everyone I hope I explained this ok