[Freeswitch-users] Can I find out where playStream was interrupted?

Hi, I'm writing a FS application (called from the dialplan) that needs to know, when a user stops playback of a sound, where in the sound they were. In Asterisk, I'd pass "STREAM FILE" back from an AGI and when the user hit a key Asterisk would give me the endpos in the status line. Is there some way to get this information back from Freeswitch, either in the inputCallback function or from the session? Thanks - Nic