When making tracking numbers, you have two options: Static or Dynamic.
Static:
These numbers will always appear the same. They will always be the same 10-digit number and transfer to the specified call plan.
Dynamic:
It must be added to a website using a code snippet.
Once placed, each webpage viewer will see a different number. This allows the system to track their movement throughout the webpage.
It also allows other reports to generate data to show how they reached the webpage.
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The decision on whether to use a dynamic number over a static number on a webpage comes down to how much data you want to be available to you.
If you care more about all the viewers seeing the same number, create a static number.
Create a dynamic number if you are interested in deeper analytics that a static number can not provide.