New, to mobile phone,....LG Rebel 3....When i get a call and see the green round button that says "answer'', I press on it a few times and do not make a contact. Am i doing something wrong? On another note, on occasions i hear a sound, not the ringtone sound for my calls. Where and why do I hear that sound? I only had setup the ringtone for my calls. I suspect maybe that whenever a message or notation enters, the sound is telling me so. ..does that sound likely? If so, how do i stop that sound? I get confused thinking its a phone call.