Get calls every other day (various times of day) from 415-803-8017. Caller ID shows GLBL RDS SVC. Area code is the San Francisco, CA area. I don't answer calls from non-local area codes or numbers I do not recognize. If it was important or ligit, they would leave a message. I set me cell to not show my number and called back. It does not ring on my end and a female recorded voice immediately says, "Thanks, for calling back. If you are not interested in receiving any future calls regarding our special promotions, and would like to be placed on our do not call list, please press 1 now." Nothing is said in the recorded message identifying the company/person calling. That is a red flag that it is a solicitation or scam call.

June 30, 2014.  I'm in Honolulu, HI.  They called once.  No message left.

yup harassment calls.
this idiot will be shot, i meat Should be shot....

Called our mid-fl landline at 2.27p on 7/2/14.  No msg was left, caller id is "Unavailable".  Low level scammer.

They called several times in past two weeks to our landline. Have called in past as well.  Calls come in waves.  We don't answer unfamiliar numbers.  No messages left.  Sometimes GLBL RDS SVC shows on caller ID. Real annoying - most likely scam.