[h323plus] Endpoint that listens on TCP 80

[Simon Horne]

Zarko

The solution is a little more complicated then simply listening on port 80.
The endpoint must connect, and keep alive a connection to another device on
that devices TCP port 80 (or 443). Registration (RAS) in H323 is generally
via UDP on port 1719 and call signalling on 1720. There is a H.460 standard
that will allow you to merge both RAS and Call Signalling onto one port and
support NAT traversal on port 80. The standard is H.460.17 and will allow
you to register, make and receive calls over port 80 (or 443) HOWEVER this
will not get the media thro' which must be over UDP so open UDP ports must
be found. The problem is you need minimum 2 ports (audio & video) unless you
multiplex media (which is supported in H.460.19), however neither h323plus
or GnuGk support it.

So besides port 80 (or 443) you need minimum a reliably open UDP port for it
to fully work, now you just have to find that open UDP port and it can
possibly work. :-)

Of course you will need to go implement H.460.17 & H.460.19 (with
multiplexed RTP) on both the NATed Endpoint and Gatekeeper.

Simon

> -----Original Message-----
> From: h323plus-bounces at lists.packetizer.com
> [mailto:h323plus-bounces at lists.packetizer.com]On Behalf Of Zarko
> Markovic
> Sent: Friday, May 30, 2008 7:51 PM
> To: H323plus
> Subject: [h323plus] Endpoint that listens on TCP 80
>
>
> Hi,
>
> Does anyone managed to run endpoint based on h323plus that listens on
> port TCP 80? This will help h323plus based endpoint to work like Skype
> in more regulated networks.
>
> Regards,
> Zarko