I was wondering if anyone else has a similar problem or some suggestions. I have full signal in my house and have had no problem using my iphone for the last four years. However, just recently I am having trouble with people hearing me on the other end of the line, although I can hear them fine. This only happens in my house so I don't think its the speaker. Also, my wife's iphone is experiencing the same issue. I was wondering if there could be something interfering? Baby monitor, wifi, cordless phone, etc. Any ideas? Please visit www.reddogfund.org to help a great cause!