You can check whether you've also saved your call record to other devices or not. If indeed not, it seems impossible to recover the overwritten ECAMM Skype Call Recorder folder from your MacBook Pro whose internal disk is an SSD.
That's because the SSD's TRIM feature makes the data blocks be erased from the SSD on the heel of the original data being deleted or replaced.
However, you can try iBoysoft Data Recovery for Mac. This data recovery tool gives you a chance to recover the replaced files on your Mac. I suggested you download this app immediately to retrieve your overwritten call folder ASAP.