Any ideas who this might be?

They call my cell phone and when I answer nobody will speak, so I end up hanging up.  I get calls almost every day.  Today I got two calls.  
Maybe they want me to call back so they can sell me something since they are not supposed to call to solicit people.

called just now twice in less than a minute. thank goodness for caller id :) and for the emails i get saying who called.  anyone know what company this is?

I've been receiving calls from this number every day since 1/4/11.  No one there.  Disconnects in 10 seconds.

At work,I have been getting calls from this number about every 2 hours for the past 2 days. No one is there, and the phone call gets disconnected.....  UUUGGG!!!!! Annoying!

At our biz we are called by this number once or twice a month and no one is ever there.

Answered, no one there...call was disconnected as well.

Same thing.  Supposedly "Integra" cust service

Pick up right away, no one answered or there. Call disconnected about 10 seconds after picking up. Annoying