Call Logs API - How long are URIs for a particular page of a result set available after response

Hi there,
I'm currently working on archiving call log metadata and hoping to cutdown on deduplication. I plan to loop through the pages of result sets using the nextPage object URI within the navigation object.


Let's say there's some error that occurs, and I'm able to preserve the nextPage URI in my error logs. How long will that nextPage URI be valid for, so that I can resume fetching the rest of the result set?