This is the translation of the voicemail I received on my Google Voice number from the phone number posted above:
"This is an urgent message for the business owner. We've tried numerous times to contact you through mail, and now by telephone regarding your Google listing web page. This is your final notice if you do not act soon. Google will label your business as permanently closed press one now to speak with me or another google specialist. Did you know that 74% of your customers search online before making a purchase if your google listing is shut down you will lose on all of those potential customers. It is critical that you the business owner take advantage of this rare opportunity to get ahead of your competition press 1 now to find out how to validate you are free Google listing this message applies to all business owners if you were the business owner press one now press 2 if this is not a business, or you would like to be removed from our calling list."
To my recollection, I haven't received any mail or previous calls from Google about this. It sounds like a scam.