Retrieve pstn call

Hi Kinatyan, 

Thank you for posting your question in the Microsoft Q&A forum. 

Based on the information you provided, I’ve conducted some research and would like to share a few insights that may help clarify the behavior you're experiencing. 

While the $top query parameter is widely supported across many Microsoft Graph endpoints to limit the number of results returned, it does not apply universally. According to Microsoft’s official documentation on Paging Microsoft Graph data in your app - Microsoft Graph | Microsoft Learn, certain endpoints may not support all paging query parameters as expected. 

In this case, it appears that the getPstnCalls endpoint under callRecords might be subject to such a limitation. I came across a similar issue reported by another developer on Stack Overflow: microsoft graph call records get pstn - won't honor top 10 limit - Stack Overflow 

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I hope the information provided is helpful. Please let me know if you have any further questions. 

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