Robocall Scammer - Do not answer but you should block this number. Called my cell and I never answer if I don't see a name I know on the caller id. Called number back using Skype and got an automated message "The survey you are calling about has already ended." and then it hangs up.
Called my cell. "Hi, this is X from 'customer service'. Can you hear me?" Customer service without a company name? I don't think so. Hung up and blocked.