[SR-Users] Record Routes

[Alex Balashov]

I think you are treading into dangerous territory that stems from a lack
of understanding of SIP. You can't just go changing stuff to look like
something else.

BYEs are in-dialog requests and their Route: sets are constructed from
Record-Route sets set up during the initial INVITE transaction that
formed the dialog. They need to be left alone.

On Tue, Sep 11, 2018 at 12:37:56PM +0000, Wilkins, Steve wrote:

> Thank you,
> 
> I am doing this just as a test, because I cannot get a soft-phone to hang up when the 'BYE' is initiated by a WebRTC client (although, some provider soft-phones do work ,Hang up that is).
> 
> I have pcap logs of the one that works, so I am trying to get the SIP message to match that one.  The only difference between the
> one that works and the one that does not, is that the Route's: are different.
> 
> I must be misunderstanding the SIP Conversation because, the 'BYE' request is getting to the soft-phone provider, but the provider is sending back '404 Not Here'.  My confusion is that since the Request is making it to the provider, why does the Request Route matter at this point.
> 
> -Steve
> 
> -----Original Message-----
> From: sr-users <sr-users-bounces at lists.kamailio.org> On Behalf Of Alex Balashov
> Sent: Tuesday, September 11, 2018 7:25 AM
> To: Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
> Subject: Re: [SR-Users] Record Routes
> 
> On Tue, Sep 11, 2018 at 11:22:26AM +0000, Wilkins, Steve wrote:
> 
> > Can a Route: be removed?, if so, how?
> 
>    if(is_present_hf("Route"))
>       remove_hf("Route");
> 
> Some may view the if-statement as redundant, given that remove_hf() will simply have zero effect if the header is not present, without complaint.
> 
> But unless you are doing this in the context of an initial request, you need to carefully ask yourself about your motivations.
> 
> --
> Alex Balashov | Principal | Evariste Systems LLC
> 
> Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
> 
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-- 
Alex Balashov | Principal | Evariste Systems LLC

Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) 
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/