Problem with Sunlink X.25

[munnari!kylie.otr.oz.au!joe at uunet.uu.net]

I have been able to use the x29/x3 pad programs successfully and now try
to use the x25manager to interconnect two of our Ethernet networks.  The
problem is Australian PDN gateway (OTC) do not allow packets with facility
negotiation.  Sunlink X.25 send call request packets with facility type
hex-42 and hex-43 which are packet-size and window-size negotiation
respectively.

Does anyone knows how to make the x25manager not send these octets in the
packets?

Has anyone run Sunlink's x25manager to deliver internet datagram
transmission over Public Data Networks? I would love to hear from anyone
who has succesfully done so, particularly over international PDN and even
more interested if it involves Australia's or UK's PDN.  Thanks in
advance.

J.J.Joe
Optech Research International
joe at kylie.otr.oz