If you are focusing on lead generation and phone calls, you should use CallRail.
Q. Why should you upgrade from Google's free call tracking?
A. To collect user's phone numbers, record phone calls, provide call attribution in other web platforms (i.e. Google Analytics, Facebook Ads, Microsoft Advertising, etc). Google call tracking only notes a call's duration in Google Ads.
Q. What plan should you get with CallRail?
A. The Essentials plan for $45/mo (because the Lite plan for $30/mo does not include conversion tracking integrations or website number pool tracking).
Q. How should you provide us with access?