Tripped answering machine but left no message.

I got a call from this number on my work phone and the message sounds like a little kid going "hehe"

Follow-up: I finally talked with them. Caller claimed to be a call center for Special Olympics. I told him I do not participate in telephone solicitations and to quit wasting his time.

The caller asked for my husband. When we returned to the phone. The caller was no longer on the line.