David Mihm warns Be Wary Of Call Tracking Numbers In Local Search. To have Google always display the correct address and telephone number for your business in Google Maps, it is important that these appear in all online citations. A citation is a mention of your business information (name + address + phone number) out on the web even if it does not contain a link.
A particular phone number tied to a particular business gives search engines increased confidence in that information, especially if it matches what the owner has entered into the Local Business Center. Phone numbers may even be a stronger confidence indicator than addresses.