TNG - lost days of call recording

[Watamu]

This subject has been briefly covered, but I think I need to ask my exact question.
I do an account reconcile every 11th of the month, and last month I reconciled the Account up to 10th February, with all calls made.
Yesterday, due to loadshedding and my UPS tripping the TNG server shut down suddenly. On starting up again, I see I have lost ALL call data going back to 26th January.
I do not have system restore set, and the system is up and running recording data from that start up.
My question is, How do I restore the lost days data so that I can bill my clients? I spoke to Belinda and she informed me there is a way to restore from Raw Data.
With many thanks.

[Luanda_Junzi]

Good day Watamu, Thank you for your query.

First I would suggest import raw data,if your don't have raw data try export,
for details see forum post:

TNG call data import options