If it is the voicemail recording being left by the caller, it is possible that your gateway / phones / SIP provider are using silence suppression. You would need to look at the RTP stream coming in to FS. You can use Wireshark (if G.711) to replay it and see if you are receiving it correctly. On Mon, May 23, 2011 at 12:31 PM, Jay <p2.freeswitch-list@coleinternet.com> wrote:

I need some direction on tracking down why some voicemail recordings are being cut off at the front end. There are instances where the start of the .wav file is a good 5 seconds into the intended message.

what FS components could be responsible clipped voicemail recordings?    is there silence detection going on? if so, are there any controls such as automatic gain control, fixed volume settings for recordings or other normalizing going on?

any advice?

thx.

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