Thanks for the reply.
the silences are in a couple of places.
1. after dial but before connection there is silence for 4 - 8 seconds (thinking aloud maybe interdigit timout) can this silence be masked somehow
2. between applications - with more reading and experimentation I found this was due to "recorded silence" at begining and end of messages coupled with the after message delay on IVR.
So for timeout option we had 5sec delay after end of message + process time + recorded silence at start of next IVR menu. this gave us a total of approx 8-10 sec silence on time out. I have rerecorded messages and reduced this.
My original thoughts were to have a sequence that gave the options ie dial 1 for XXX dial 2 for xxx then at the end of message have a part that said "or just hold and you will be transfered to voicemail" then effect transfer immediatly. However once I clipped messages to eliminate the recorded silence the 5 sec delay was acceptable.
regards brian