Carl can call home on it but for some reason cant receive calls. Right after he hung up today, I tried calling him right back to remind him to bring juice home for the baby and got a message saying that the "caller does not have their voicemail box set up yet". I got the same message yesterday when he was standing outside testing the phone and I tried to call him. Why on earth would he need a voicemail when he has his phone turned on? I have looked through the manual but still cant figure it out. I'll keep trying but would appreciate if anyone out there knows of a setting that I am overlooking.