[Asterisk-Users] Re: [asterisk-dev] Confusion about construction of RURIs from contactheaders for BYEs generated by *

[Olle E Johansson]

7 mar 2006 kl. 03.15 skrev Dr. Rodney G. McDuff:

> I'm a bit confused about how * constructs the RURI when it generates a
> BYE. For the situation where * send the initial INVITE it  
> constructs the
> RURI for the BYE from the contact header of the 200 OK response  
> which is
> well and good. However when * receives the initial INVITE it does not
> use the contact header contained within to construct the BYE's RURI  
> but
> constructs it from scratch. This is of particular concern when one is
> using a SIP clients that only do TCP like office communicator (and of
> course a proxy in the middle to do UDP/TCP protocol conversion) . In
> these cases well-behaving UA puts a transport=tcp tag into the contact
> header of either the INVITE or the 200 OK. In the first scenario this
> tag is preserved and the BYE's RURI has the transport tag (which the
> proxy can use for protocol conversion). The second scenario loses the
> transport tag in the BYE's RURI (and the proxy has no idea that  
> protocol
> conversion is needed)
>
> Is my understanding  of the code correct and if so was this something
> that was just missed or a design decision.
>
This seems to be a bug we have to fix. Some advice:

- Please do not crosspost to two mailing lists
- Always mention version of Asterisk you are using when reporting a  
problem
- Open a bug report for this in the bug tracker, bugs.digium.com

Thanks
/Olle



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