try blocking ICMP packets TO the MSS.... i had this exact same problem a few months ago.... MSS starts sending RTP to FS before FS is ready to accept.... so the OS catches the port not open and returns an ICMP 3:3 back to the MSS.... which in turn chokes on the queued up RTP and refuses to send anymore...

-Ray

John Rutherford wrote: 
I just emailed it to him.

Thanks!

-----Original Message-----
From: freeswitch-users-bounces@lists.freeswitch.org
[mailto:freeswitch-users-bounces@lists.freeswitch.org] On Behalf Of
Michael Collins
Sent: Wednesday, December 10, 2008 1:09 PM
To: freeswitch-users@lists.freeswitch.org
Subject: Re: [Freeswitch-users] No audio after transfer

On Wed, Dec 10, 2008 at 10:01 AM, John Rutherford <john@loopfx.com>
wrote:
  
I have a pcap, but I'm not able to see anything obviously wrong with
    
it.

We find that some equipment (in fact a lot of equipment) have features
that cause issues to be quite non-obvious, so perhaps you could give
the pcap to Brian for him to review. He's a total ace when it comes to
bug hunting.

-MC

  

From: freeswitch-users-bounces@lists.freeswitch.org
[mailto:freeswitch-users-bounces@lists.freeswitch.org] On Behalf Of
    
Brian
  
West
Sent: Wednesday, December 10, 2008 12:59 PM
To: freeswitch-users@lists.freeswitch.org
Subject: Re: [Freeswitch-users] No audio after transfer



would be most helpful to capture a pcap of the entire thing by itself
    
start
  
to finish.



/b



On Dec 10, 2008, at 11:51 AM, John Rutherford wrote:

No. I realize that's it's a B2BUA and that's exactly what we want.



Everything with the transfer seems to work fine, except that there is
    
no
  
audio.



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