There’s a new extractor you can use from the Keboola Connection’s Extractor tab.
It serves for extracting call log from Telfa into Storage API.
If you set the filter to “from”, which is a date since when you want to extract calls to auto, it will automatically load all the calls initially, and all the subsequent runs of the extractor (using the same configuration, of course) will extract calls since the previous execution (with a minimal overlap).