I have google voice and screen all unknown numbers.    They called, but did not go through the call screening, so just showed up as a "missed call" from this number.

1/16 13:09 PST Second call in 2 days from this number, but this time shows as global trading.  No actual message, just funny "bloop" sound.  Was out, but wouldn't have answered.  If previous notes are right, whoever this is is wasting their time because  solar is not for me.

The caller said Hello this is... but I missed the first part because the line is busy.

Ditto all the below. Caller ID says "Global Trading."   I tried one of the ruses prescribed in the Jan 14 LA Times David Lazarus article "How to Torment Telemarketers."  I said, "Oh, I'm sorry, I have to look for my wallet.  Can you hold on a minute?"  The guy said, "Ma'am, you don't need your wallet, I'm just here to tell you about--" but I put the phone down, set my timer for 30 minutes, went about my business.  When I came back, he was gone.  BUT an important call went to voice mail and I missed it AND they called again this morning.  Time to buy an air-horn canister, as suggested by an ex-cop in the article.

yep.... confirmed!