I missed picking up the call and tried dialing back, however I received a fast busy signal.

I picked up the call from this number, and the caller was male, and asked for one of my team.  I indicated that the individual was not available, and that I'd be glad to take a message.  The caller (in a very rude tone) asked me to provide the schedule of the person he was trying to reach.  Naturally, I declined, but again offered to take a message, and requested the identity of the caller - he hung up.

If I had to guess, I'd say this is an offshore company calling to solicit for outsourced IT, QA, Engineering or Production.

I got this call but wasn't at my desk. It was on my US-registered skype-in number and I am in India, and I got the call at around 3:30pm India time (so 1:30am PST!) Don't know what this is, but it was very strange to get a call at this time from the US, so I checked it out on this site.