[Freeswitch-users] Re-Recording

All, I understand how to use the inputcallback to seek to a new position during playback. But how can I mix playback and recording. For example: But how would I playback a recording (say 8 seconds) allow a user to pause (say 6 seconds) then cease playing and allow the user to begin recording from this point. Therefore trashing the original 2 seconds and continuing from 6 second anew. Bob