[Freeswitch-users] blocking 183 w/o sdp

[Sam]

Hi,

So you say i need to put
<action application="bridge"
data="{sip_contact_user=${contact}}{sip_ignore_183nosdp=true}sofia/sbc/$1@
${dialed_domain}"/>

Regds
Sam




On Fri, Jan 28, 2011 at 10:23 PM, Anthony Minessale <
anthony.minessale at gmail.com> wrote:

> you need sip_ignore_183nosdp=true set on the b leg not the a leg.
> Put it in the dial string in {}
>
> {sip_ignore_183nosdp=true}sofia/foo/foo at bar.com
>
>
> On Fri, Jan 28, 2011 at 12:41 AM, Sam <u2nsam at gmail.com> wrote:
> > Hi,
> >
> > how can i ignore 183 without sdp,
> > what happens is the provider sends 183 without sdp and by applying
> "<action
> > application="set" data="sip_ignore_183nosdp=true"/>"  the FS sends 180 to
> > the leg a.
> > Here i want to block the 183 with SDP just like router as b2bua and send
> > nothing to leg a, and when actual 183 with sdp comes it should send .
> >
> > Its because, providers are sending false signaling by sending 183 without
> > sdp,and it hampers while @ production,
> > Although by cisco sbc i have done this but i want to do it by FS,
> > Take a scenario, when call is send 183 without sdp for 10 secs and then
> > followed by 183 with sdp ( actual signal),
> > but when some one dials invalid number it rings for 10 secs and then
> gives
> > SIP cause 404, which is bad from the providers.
> > So this is the reason i want to block it.
> >
> > Most of the providers do this, the way out is blocking.
> >
> > I have got an advice from Tihomir  to do "execute_on_ring and parse your
> 180
> > / 183 messages in search of SDP,
> > once you get 183 without SDP do not send it back to leg a and send signal
> > only when you got 183 with sdp or 180 "
> > And this could be valid call flow.
> >
> > This happens in many cases where the provider is having nextone as a sbc
> and
> > that too tier 1 !
> >
> > Regards
> > Sam
> >
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> >
>
>
>
> --
> Anthony Minessale II
>
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