Answering a call but don't hear anything?

[Visionikz03]

I can't pinpoint if it's only happening under this circumstance or not but sometimes i will answer a phone call but not be able to hear the other person's voice but the call is still active and connected. The most recent time it happened I remember that I happened to have the phone in my hand when it rang so i answered it immediately but i heard nothing on the other end... they called back again and this time i let it ring twice before answering it and didn't have a problem that time... any thoughts?

 

[Kelmar]

My wife and I have experienced this problem recently but we tracked it down to her at&t service. Power cycling the phone fixed the problem.