I heard a voice on my phone.

[Android Central Question]

I was talking to my daughter on the phone. I thought my granddaughter had gotten on the phone because I heard, very plainly, “I love you” and laughter. I said , “I love you more.” Then there were some other noises, then silence. I asked my daughter what was going on. She never heard the first voice, and the granddaughter wasn’t in the room. She said in the middle of our conversation she heard me randomly say, “I love you more,” then extreme silence until I asked her what happened. Very creepy, especially in light of some other recent events. I’m really hoping someone can give me a logical explanation. My phone is aSamsung galaxy s5.