Heavy accent and not from North America. He was using a bad VOIP setup, he was trying to sound like a local business in California needing to buy solar products. I told him I could not understand and hung up.

I believe he was using Skype because he called 3 times and all three numbers were the same

The first call from this guy was from phone number 661-380-4333
then he called back on 661-380-4924
and then called back on 661-380-4263