Free spam call blocker

Same Pakistani telemarketer cold call group who has now called 568 times since 08/11/23 using different numbers. I keep a full record w/dates & times, many calls also recorded, including calling the number back to see what happens. This call claimed to buy properties. After jumping thru the questions, he then tried to transfer me to the US company but it did not go through. The hold music was the same Chopin Minute Waltz with the “your call is very important to us” in a fast recorded voice.