This sound is from Lenny Telemarketer Time Wasting Robot Soundboard

Lenny is a chatbot designed to scam bait telemarketers using messages. The chatbot uses messages to trick people into sending messages. Lenny is an online chatbot to scam people using messages and text messages. It is a live chatbot that uses text messages to scam telemarkers.
See also: Timewasting, spam calls.