[Freeswitch-dev] Where to patch for needed audio functionality

Devs, I was attempting to use FS for dictation but need more audio functionality. I was wondering if you had any suggestion on where to patch the FS core for: 1) Pause during recording. (Pause a recording, listen to audio (prompts), then return to continue appending to the paused recorded stream.) 2) Seeking and repositioning the recording point on the stream currently being recorded. (Ex. Recording could be rewound, listened to, paused and continued from the pause point.) 3) On #2 appending is necessary where insertion would be a useful option. Thanks, Bob