Calls about twice a week.  If I answer, person at other end sits complete silence and never hangs up.  If my answering machine answers, they stay on the line long enough for the machine to start recording, and then they hang up.

Calls every so often.  When I answer the person at other end sits complete silence while you hear a clicking sound and then they never hang up.  If my answering machine answers, they stay on the line long enough for the machine to start recording, and then they hang up.

Calls 2 - 3 times a week.  Call just sits there most of the time.  Today a lady finally spoke.  She was asking for support for a magic show at Nimitz Highschool.  When told "NO" she just hung up.  We tried calling back and the phone just rings.

Receive calls from 972-253-3104, 6040 and 8046, usually twice a week.  The one time I was home to answer this call, my phone rang twice (voicemail picks up after 4th ring) and they immediately hung up.  I'm calling AT&T to file a complaint because, when I call the numbers back, I hear a series of clicks as if the line is picking up and hanging up (automated dialer?).  I'm on the National No Call List and may file a complaint with them, as well.

i tried calling back it just rings in a weird manner .............