I have received 6 calls in the last 3 days. Definitely annoying, though I just abort the call instead of answering it.

Caller let it ring and then when I answered there was nothing. Not a dial tone, nothing. I tried reverse lookup but nothing. Who is it?

I've been looking it up. Apparently it's Wyndham (Formerly Trendwest) and they have a very rude and aggressive telemarketing campaign. Havn't figured out how to get rid of them yet though, as I too am just getting dead air and no voices (any more). I told them to leave me alone after their twentieth call so now there's just no voice. Awsome.

Wyndham Resorts calls about timeshare, (403) 398-1130.  Individual gave name of Debra Linn, Wanted to sign me up for Timeshare informational dinner in Lexington, KY. This number has called many times and does not leave message for obvious reasons.

continual call with silent response when I answer.