A subtle adjustment is in the works for Cram Communications' religious and paid programming station at 103.9 FM as the call letters changed from WVOA to WVOA-FM. That's because Cram has decided to use WVOA as call letters for its new station located at 720 AM and licensed to Dewitt instead of the original plan which called for the WSIV call letters to move to 720 AM from 1540 AM.