Now the trend and security is increased for the Ads. Newly introduced is the call-only campaign to check the authenticity of the phone number that is given during an advertisement. This new change in the trend starts from June 2015.
This new trend will show “unverified phone number” or “unverified” in the ad extension tab if you haven’t verified the phone number.
For your ads to get verified phone numbers, you just need to do any of the following three simple steps:
You can link the Google webmaster Tools account with Ad words
You can add your Ad word conversion code snippet to the main page of the ad.
Make your phone number that is used in the extension list to display on the website.
Get verified before June 2015 to get your ads approved else they will be rejected by Google.