“Coming in early 2014, users who have verified their phone number and have discovery turned on will have their names and Google Profile photos display whenever they call you, or you call them (it’s great if a new friend who hasn’t been saved in your contacts yet calls you). Check your Google Account to make sure you are happy with how you appear on caller ID by Google: http://goo.gl/g9P3Bp “
The Phone app on 4.4 has Google Search integrated into its core, and starting in 2014, those who have verified their number with Google+ will have their picture be displayed when they make an outgoing call. Google also has Caller ID built in. Google will match the number with the business and display it appropriately on your phone.
We’ll keep you updated as the “People” portion of the Caller ID function rolls out! If you’re not ready for it, go ahead and get your number verified so we can start seeing your pretty faces when you call!
Source: Attila Bodis