When my husband first brought a kitty home, I just hated her because she's so dark fur. I grew to love her so much and this incident supprised me.
During the weekend, I went to my cousin wedding for 4 days and I left my kitty with my husband. When I called home to check on them, I asked my husband to put me on speaker phone. When she heard me call her name she came to the phone and reply ("meow meow" of course), beside that she also licked the phone and rubbing it.
My husband said after the following days, she came to the phone and meowing searching for my voice and why i'm not home.
When I came home, she heard my key as I open the door and there she was, meowing, licking, running around my feet. I just love her so much.