Yep but if you put it in the loop where the smoother is allocated it wouldn't matter but you could add it to the rtp creation. /b On 9/6/05 3:26 PM, "Kevin P. Fleming" <kpfleming at digium.com> wrote: > Wouldn't it make more sense to pass in the parameter when the RTP > session is being 'created', rather than every time a packet is written?