They call every day and often more than once a day.  I told them that I am not interested in their solar system but they continue to call daily.  When I tried to call back, a get phone company message that says that the number is disconnected or no longer in service.  Obviously, they have something to hide and are a fraudulent company with whom you should not engage.  I suggest that you record their sales pitch but be sure to tell them that you are doing so.  This may intimidate them enough to avoid calling you again since they may fear that you will bring the recording to the attention of some legal entity that may be able to get after them.

The calls are probably originating from an overseas call center. If so, there's not alot to be done. Ignore or block them.
If you think the calls are coming from a domestic source you can try this. Answer the next one and inform the caller that all your calls will now be logged and recorded, and then turned over to a Consumer Atty. to pursue violations of the TCPA.
US based violators of the TCPA are well aware that the fines and penalties are quite stiff and that more lawsuits and fines are successfuly pursued under the TCPA than they are under the FDCPA. If the pests are domestic the calls will stop. I hope this may be of some help.
Live Well.
Gunnar

Receive 2 or 3 call every day. It is now 11:30AM on a Sunday and I have already revceive 3 calls. All the calls are from R. Overdorff at 714-350-2698.

I've had 6 actural phone calls from them today... Asked to be removed from list as I'm in a condo and have no control  if we can get solar.  Last week 26 calls.  When I asked one woman to remove my nujmber she said she can make sure I'll be inundated with calls and that has happened.  Help!  All the calls show 714 350 2698 Overdorff R

What is it with these people.  They call 4 to 5 times a day.  Sometime you get a voice and when you tell them to quit calling you it seems the number of calls a day increase.  I've threaten them with harassment but that didn't stop their sales pitch.  Hey, solar people if you read these comments you are not doing your business a favor.

calls come several times a day; no one there when I answer, but a recorded message that says "goodbye"; I called the number back and message from Verizon says the number is no longer in service. I want them to stop or somehow block these kinds of calls.  It looks like it's a local number (mine starts with 714 also).

This phone call on a daily bases if lucky, many days more.  Is there anyway to stop this nonsense?

Repeated calls every day.  Some days several times that day.  Finally got a person and it is some solar energy company. Asked where they got my name and number just a lot of gibberish.

Number all every day, sometime up to 4 times a day.  No messages.  No one is there when I answer.  No way to get them to stop calling

This company calls ever day, yet when I pick up, there is silence and then a machine says, "Good-bye" and hangs up.  So frustrating.

A telemarketer for some company selling home solar electric systems.