Just did the same thing to my personal cell.

Caller Id says Consumer Care. Nobody is there when I answer but then you can hear them disconnect.

I just got the same thing on my cell phone. I called the number back and without identifying themselves it says "If you wish to be placed on our do not call list, press 1" So I did, they said another 24 hours to be removed. Still no idea who it is.

called my cell, answered and there was silence.

Call to my husband's cell phone from 'Jennifer' about installing security systems.

I added this phone number to 'Junk Call' on his phone's contact name list, so the next time we'll know not to answer. I put all the junk calls there, so the next time the caller ID will say 'Junk Call'.