migration tool required for CER( Cisco emergency responder) to teams emergency calling

hi ,

 we are working on the migration of 911 calling from CER system to teams emergency calling.

we want to know the migration tools available to assist the migration of data from CER.

if not available , atelaet some documents that can guide us how to download CSV data from CER and then modify the data as per Teams emergency calling and then upload the same .