[OpenSIPS-Users] Pass calls to another realm via gateway

Iñaki Baz Castillo ibc at aliax.net
Mon Nov 2 12:03:19 CET 2009

El Lunes, 2 de Noviembre de 2009, Thomas Gelf escribió:
> Iñaki Baz Castillo wrote:
> > El Viernes, 30 de Octubre de 2009, Alexander escribió:
> >> BTW, what do you think about possible performance loss because of TCP?
> >> Or it's neglible?
> >
> > The problem of SIP TCP in OpenSIPS is not the performance, but the fact
> > that each running OpenSIPS process blocks until its TCP transaction in
> > processed.
> Alexander: I faced issues with stupid devices unable to handle fragmen-
> ted UDP packets several times. TCP would help, however as Iñaki wrote it
> also has some drawbacks. I tried to write down some suggestions on how
> to solve this issue:
> http://thomas.gelf.net/blog/archives/Smaller-SIP-packets-to-avoid-fragmenta
> tion,27.html
> This is not what a proxy should usually do - but, honestly: who cares if
> it helps? I'm doing so on my productional systems (OpenSIPS 1.6), and I
> didn't meet any issues so far.
> Iñaki, others: I'm pretty curious about your valued opinion on this - as
> you definitively have deeper SIP knowledge than I do.

I think it's ok. There could be a function in OpenSIPS to use short headers 
("v" instead of "Via" and so).

Iñaki Baz Castillo <ibc at aliax.net>

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