I get this call upwards of 3 times a day, but they never leave a message. On the occasion I answered, they immediately hung up or never replied. Seems like a batch call like a lot of telemarketers and simply take their time answering whoever answers the phone.
It would be really nice if everyone, just slowed down and dialed the correct phone number. How hard is that? I get so many errant calls. Slow down, enjoy life, and don't bother other people.