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Jeez, I just tried this – it worked great.

Google Voice Local Search is Google’s experimental service to make local-business search accessible over the phone.

To try this service, just dial 1-800-GOOG-411 (1-800-466-4411) from any phone.

Using this service, you can:

search for a local business by name or category.
You can say “Giovanni’s Pizzeria” or just “pizza”.

get connected to the business, free of charge.

get the details by SMS if you’re using a mobile phone.
Just say “text message”.

And it’s free. Google doesn’t charge you a thing for the call or for connecting you to the business. Regular phone charges may apply, based on your telephone service provider.

Google Voice Local Search – Link.