You can export the call history in CSV format, and then open the information in Microsoft Excel for further manipulation.
From the Call History page, click the Export button.
When prompted, click Save.
You can also configure a scheduled export by clicking the Scheduled Exports button. The following Schedule New Export window will pop-up.
The Options tab will allow you to filter for a specific extension. Select if you want the export to include Inbound Calls, Outbound Calls, Headers, or filter for off-net calls only. You can select the format of the CSV file.
Click the Add button when you are completed.
After the Schedule export has been created, you can edit any of the options by clicking the edit icon. Download the scheduled export.