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Introduction

In Australia’s competitive digital marketing environment, businesses must use every available tool to stand out and convert prospects. One of the most effective features for increasing customer engagement and improving conversion tracking within Google Ads is the Call Extension. This function allows ads to display a phone number directly within search results, providing potential customers with a simple way to contact your business through a call button—especially effective for mobile devices.

Whether you’re running call-only campaigns, display campaigns, or smart campaigns, leveraging Google Call Extensions can significantly enhance your click-through rates (CTR) and streamline the customer journey. By allowing users to engage instantly, you create a direct path to your customer support team, leading to more phone conversations, higher satisfaction, and measurable ROI improvements.


What Are Google Ads Call Extensions?

Call Extensions are a type of ad extension in Google Ads that lets you include your business phone number alongside your ad text. When viewed on mobile devices, they feature a clickable call-to-action button (the familiar bell button or call icon) that allows users to connect instantly. On desktops, the number is displayed as part of the ad text for manual dialling.

Comparison: Standard Search Ads vs. Ads with Call Extensions

FeatureStandard Search AdsAds with Call Extensions
Clickthrough Rate (CTR)ModerateSignificantly Higher
Ease for UserAverageExtremely Convenient
Conversion LikelihoodLowerSubstantially Higher

Did You Know? Businesses using Google Call Extensions often see a measurable increase in both call duration and conversion action rates due to faster and more personal customer connections.


Benefits of Using Call Extensions

  • Boosted Conversion Potential: Calls convert at higher rates than website clicks because customers are already primed for action.
  • Enhanced Customer Trust: Displaying a local phone number in your ads signals legitimacy and personal service.
  • Improved Mobile Engagement: With click-to-call functionality on mobile, customers can contact you instantly.
  • Ad Rank and Smart Bidding Impact: Call extensions help improve Ad Rank, and data gathered through calls strengthens Google Smart Bidding algorithms powered by machine learning.
  • Deeper Insights: By integrating call reporting and call tracking systems, you can evaluate metrics like call length, call ID, and call conversion performance.

FAQ: Do call extensions increase costs?
Not directly. While users clicking the call button incur standard ad click costs, increased engagement and conversion rates often result in a higher return on ad spend (ROAS).


Manual vs. Automated Call Extensions

Google offers both manual call extensions and automated call extensions to give advertisers flexibility.

  • Manual Call Extensions: Provide full control over which call extension numbers appear, making it easier to manage tracking and routing.
  • Automated Call Extensions: Automatically assign numbers through call extension auto-assignment when Google predicts improved ad performance.
FeatureManual Call ExtensionsAutomated Call Extensions
Control Over NumberFull ControlLimited Control
Customisation OptionsExtensiveMinimal
Setup TimeLongerShorter
Tracking CapabilitiesAdvanced (via call tracking numbers)Limited

Pro Tip: Manual setups are ideal for businesses that rely on call routing, call forwarding services, or multi-location call handling systems.


Where Can Call Extensions Be Added?

You can assign call assets at various levels to optimise performance:

  • Account-Level: A single number used across all ad campaigns.
  • Campaign-Level: Different numbers for unique campaign impressions or geographies.
  • Ad Group-Level: More granular control, ideal for local businesses or services targeting specific areas.

Hierarchy Rule: The most specific level overrides others (Ad Group > Campaign > Account).


Step-by-Step: How to Add Call Extensions in Google Ads

Preparation

Before setting up your call extensions, prepare the following:

  • Determine your call extension numbers and whether you’ll use a Google forwarding number for tracking.
  • Define business hours for call scheduling.
  • Consider using a call tracking system (e.g., Delacon Support) for deeper analytics integration.
  • Ensure compliance with call asset requirements (no shared-cost or non-standard cost numbers).

Adding a Call Extension

  1. Sign in to your Google Ads or Google AdWords account.
  2. Navigate to Ads & ExtensionsExtensions → Click + Call Extension.
  3. Choose your level (Account, Campaign, or Ad Group).
  4. Enter your local phone number or call tracking number.
  5. Configure call reporting, conversion tracking, and business hours.
  6. Optionally enable Google Call Forwarding number for detailed tracking.
  7. Save changes and monitor performance in Google Ads Editor.

Quick Checklist for Call Extension Setup

  • Select correct campaign level
  • Add local or tracking phone number
  • Enable call reporting
  • Enable conversion tracking
  • Schedule during business hours
  • Test call functionality
SettingDescription
SchedulingSet when ads show phone numbers (e.g., 9 AM–5 PM)
Call ReportingTrack call duration and conversions
Forwarding OptionsRoute calls via Google forwarding number for attribution
Conversion TrackingTag calls as conversions when criteria met

Advanced Settings and Customisation Tips

  • Call Scheduling: Match call extensions to your operating hours to maximise customer involvement.
  • Conversion Tracking: Use GCLID Tracking, Floodlight tag, or Floodlight activities for cross-platform tracking.
  • Landing Pages: Include consistent phone numbers on your landing page and business cards.
  • Location Extensions: Combine with location assets for a complete local advertising setup.
  • Call-Only Ads: If you prefer calls over website visits, create call-only ads for direct engagement.

Bonus Tip: Use bid adjustments to increase visibility during peak call hours using insights from Google Analytics or Search Ads 360.


Common Issues and Troubleshooting

  • Call Extensions Not Displaying: Could be due to ad auction performance, low ad rank, or policy restrictions.
  • Unapproved Numbers: Google disallows shared-cost or non-standard cost numbers.
  • Low Call Volume: Review ad text, call-to-action buttons, and conversion criteria.

Common FAQs

  1. Can I assign multiple phone numbers per campaign?
    Yes, through different ad group or campaign-level setups.
  2. Why isn’t my call extension visible?
    Check ad eligibility, auction factors, and call extension field configurations.
  3. Can calls be tracked as conversions?
    Yes, with conversion tracking and a conversion action defined.
  4. Can I use forwarding numbers?
    Yes, Google Call Forwarding numbers are available for tracking call duration and outcomes.
  5. Can I integrate with external tracking systems?
    Absolutely. Tools like Delacon Support or other call tracking systems can sync data with Google Analytics and Search Ads 360.

Monitoring and Optimising Call Performance

To maximise ROI, consistently analyse your call campaigns through metrics such as:

MetricDescription
Call ImpressionsHow often the call asset is displayed
Call DurationAverage call length for assessing engagement
Conversion ActionCompleted calls meeting conversion criteria
Cost-per-CallEvaluates Paid Media efficiency

Integrate data with Google Analytics, Search Ads 360, or your CRM. Use machine learning insights from Google Smart Bidding to adjust bid strategies, ad text, and responsive search ads based on call data.


Conclusion

For Australian businesses, Google Ads Call Extensions are a must-have tool to increase direct phone conversations, enhance ad engagement, and measure the impact of your advertising. Proper call tracking, conversion tagging, and call reporting can transform every inbound call into a measurable growth opportunity.

If you’d like hands-on support with Google Ads, call tracking numbers, or responsive video ads and YouTube ads, contact me. I help Australian business owners scale through precision Paid Media strategy, smart automation, and data-backed optimisation.


Additional Resources