ASL routing changes H232 packet content????

Hello

I’m running a ASL 4.014 with 2DMZ Ports ,1 internal and 1 external port.
The Traffic from External to DMZ2 and back  is open.
When I try to establish a H323 connection from outside the connection attempt is a susses, but I can’t establish a data connection. I made some traces with Ethereal and found out that port numbers inside the H323 content are changed when passing the Astaro.(not the TCP ports)

Packet Type: H225.0 CS alerting OpenLogicalChanel
Before Astaro:

H232_massage_body
  AlertingUUIE
    Faststart
      Item0
        openLogicalChannel
          forwardLogicalChannelParameters
            multiplexParameters
               h2250LogicalParameters
                 mediaChannel
                   UnicastAddress_IPAddress

          tsapIdentifier 16428 

After Astaro:

H232_massage_body
  AlertingUUIE
    Faststart
      Item0
        openLogicalChannel
          forwardLogicalChannelParameters
            multiplexParameters
               h2250LogicalParameters
                 mediaChannel
                   UnicastAddress_IPAddress

                            tsapIdentifier 16429 

I wouldn´t belive ASL would touch the the packet content.
Is this a known issue? Any work around?
 

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