Call-only ads and call extensions - when phone calls should drive your strategy

The default Google Ads setup assumes the conversion happens on a website. For businesses where the sale starts with a phone call, this assumption produces a mismatch between how campaigns are structured and how the business actually works. Aligning your paid search approach to your actual conversion model improves both measurement accuracy and campaign performance.

Call-only ads

Call-only ads are a Google Ads format that displays a phone number as the primary action rather than a website link. On mobile, tapping the ad dials the number directly without an intermediate website visit. This eliminates the friction of the click-to-site-to-call journey and is typically highly effective for emergency or urgent service queries. An "emergency plumber Manchester" ad that dials directly converts at a higher rate than one that takes the user to a landing page first, because it captures the intent at its most urgent point.

Call-only ads are mobile-only by definition. They work best for services where immediacy matters - emergency trades, urgent medical questions, crisis services, time-sensitive bookings. They are less appropriate for considered purchases where the visitor needs to research before calling.

Call extensions on standard ads

For campaigns where you want to offer both website and phone call conversion paths, call extensions add a clickable phone number below your standard search ad. These are visible on mobile and desktop and allow users to choose the conversion method that suits them. For local service businesses, call extensions are essentially mandatory - any user who wants to call rather than click to your site needs to see your number without having to navigate to find it.

Tracking calls as conversions

For call-centric businesses, phone call conversions must be tracked as primary conversion actions, not as secondary signals. Google's forwarding number system - where a unique tracking number is substituted in your call extension for each user - enables call conversion tracking natively within Google Ads. Set a minimum call duration threshold above which a call counts as a conversion - typically 45 to 90 seconds for service businesses - to filter out short wrong numbers and misdials from your conversion data. Without this, your call conversion data includes signals that do not represent genuine enquiries.

Call scheduling

Call-centric campaigns should only serve ads during hours when someone can answer the phone. Running ads at 3am that generate call attempts nobody can answer wastes budget and creates a poor first impression. Ad scheduling that aligns with your operating hours - or with a 24-hour answering service if you use one - is essential for call-focused campaigns.