[Devel] t_uac_dlg with nated SIP user agent

[Bogdan-Andrei Iancu]

Hi Juha,

the fix is on the CVS - it's a little bit different for the one I sent 
you for testing : aside the functionality fix part, it contains some 
clean-up in the build/send ACK functions.

let me know if works ok for you.

regards,
bogdan


Juha Heinanen wrote:

>if a sip ua is behind nat, uac fifo accepts the actual destination uri
>on the fourth line of the request:
>
>	:t_uac:[file] EOL
>	method EOL
>	r-uri EOL 
>	dst EOL 	// ("." if no outbound server used
>        ...
>
>and sends the request to that uri instead of the r-uri on the previous
>line.
>
>if the request happens to be invite, t_uac_dlg needs to send ack after
>receiving 200 ok from the sip ua.  that ack, however, is NOT sent to dst
>uri, but according to contact uri of 200 ok.
>
>in order for that to work, 200 ok should be either processed by a
>t_on_reply block or t_uac should also send the ack to dst uri (if not
>empty) instead of contact uri.
>
>so the options are either to somehow pass t_on_reply block number to
>t_uac_dialog via the fifo request or modify t_uac so that also ack gets
>sent to dst uri (if present).  i personally would prefer the latter
>choice.
>
>-- juha
>
>
>
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