[Serusers] onreply_route and stopping 183 messages

[Simon Miles]

Thanks for the advise guys.

I've asked both vendors to firm this problem but in the meantime I would
still like the ser to stop sending the 183 message - any suggestions ?


Simon

-----Original Message-----
From: Richard [mailto:richard at o-matrix.org] 
Sent: 26 January 2005 20:17
To: marian.dumitru at voice-sistem.ro; 'Simon Miles'
Cc: serusers at lists.iptel.org
Subject: RE: [Serusers] onreply_route and stopping 183 messages


If the CPE is behind a firewall, the early media may not be able to get
through. That's another reason that I don't like any gateway not capable
of sending 180 instead of 183.

Richard


> -----Original Message-----
> From: Marian Dumitru [mailto:marian.dumitru at voice-sistem.ro]
> Sent: Wednesday, January 26, 2005 10:02 AM
> To: Simon Miles
> Cc: 'Richard'; serusers at lists.iptel.org
> Subject: Re: [Serusers] onreply_route and stopping 183 messages
> 
> Hi Simon,
> 
> Simon Miles wrote:
> > That's my problem, the gateway does send the 180 after the 183
> 
> The GW cannot send a 180  after 183 - it's against the RFC
> 
> but still
> > the CPE does not generate the ringtone. I was wondering if the 183 
> > was upsetting the CPE and so trying to remove it.
> 
> My guess is it's the CPE client's fault. If a 180 was received and it 
> gets a 183 without SDP, it should ignore the 183 and stick to 180 and 
> play the local ringing tone.
> 
> Regards,
> Marian
> 
> >
> > Simon
> >
> > -----Original Message-----
> > From: Richard [mailto:richard at o-matrix.org]
> > Sent: 26 January 2005 19:17
> > To: 'Simon Miles'; marian.dumitru at voice-sistem.ro
> > Cc: serusers at lists.iptel.org
> > Subject: RE: [Serusers] onreply_route and stopping 183 messages
> >
> >
> > I ran into the same problem before. The quick fix is to let gateway 
> > send 180 instead of 183. It would allow the ip phones to generate 
> > local ringback tone.
> >
> > Richard
> >
> >
> >
> >>-----Original Message-----
> >>From: serusers-bounces at iptel.org [mailto:serusers-bounces at lists.iptel.org]
> >>On Behalf Of Simon Miles
> >>Sent: Wednesday, January 26, 2005 8:46 AM
> >>To: marian.dumitru at voice-sistem.ro
> >>Cc: serusers at lists.iptel.org
> >>Subject: RE: [Serusers] onreply_route and stopping 183 messages
> >>
> >>Yes the call is established at the end.
> >>
> >>In the 183 message there is no media information, so I'm guessing 
> >>that
> >
> >
> >>the gateway is not sending out an RTP stream and the CPE is not 
> >>reacting to the ringing message ! !
> >>
> >>Strange how it all works with a different gateway ! ! I do know that

> >>the CPE is working to RFC 2543 and the new gateway is RFC 3261 - but

> >>I'm told they are backward compatible.
> >>
> >>
> >>Simon
> >>
> >>-----Original Message-----
> >>From: Marian Dumitru [mailto:marian.dumitru at voice-sistem.ro]
> >>Sent: 26 January 2005 18:27
> >>To: Simon Miles
> >>Cc: serusers at lists.iptel.org
> >>Subject: Re: [Serusers] onreply_route and stopping 183 messages
> >>
> >>
> >>Hi Simon,
> >>
> >>Simon Miles wrote:
> >>
> >>>We have a problem with a piece of CPE after changing the PSTN 
> >>>gateway manufacturer. We no longer get a ringing tone !
> >>
> >>but at the end, it the call established? It's only about the missing

> >>ringing tone?
> >>
> >>
> >>>So I was trying to emulate the original packet sequence and I 
> >>>noticed that the new gateway sends out 183 messages. So I was 
> >>>trying
> >
> >
> >>>to remove
> >>
> >>>them just incase the CPE was getting confused.
> >>
> >>183 reply is used by gateways to send early media. In this case the 
> >>ringing tone is actually send as RTP stream by the gateway (usually 
> >>SIP devices play ringing tone locally when 180 received). Maybe your

> >>problem
> >>
> >>is that the RTP media from 183 (check the SDP body) is not correct 
> >>or the media itself doesn't contain the ringing sound :-).
> >>
> >>
> >>regards,
> >>Marian
> >>
> >>
> >>>
> >>>Simon
> >>>
> >>>-----Original Message-----
> >>>From: serusers-bounces at lists.iptel.org 
> >>>[mailto:serusers-bounces at lists.iptel.org]
> >>>On Behalf Of Marian Dumitru
> >>>Sent: 26 January 2005 17:56
> >>>To: Simon Miles
> >>>Cc: serusers at lists.iptel.org
> >>>Subject: Re: [Serusers] onreply_route and stopping 183 messages
> >>>
> >>>
> >>>Hi Simon,
> >>>
> >>>Currently there is no way to drop a reply from onreply_route. Is 
> >>>this really needed, no other way around?...maybe altering the 
> >>>reply... ?
> >>>
> >>>Regards,
> >>>Marian
> >>>
> >>>Simon Miles wrote:
> >>>
> >>>
> >>>>I would like to stop 183 Session Progress messages. I can see then

> >>>>arriving and being dealt with by the onreply_route code, but how 
> >>>>can
> >
> >
> >>>>I
> >>>
> >>>
> >>>>stop then being forwarded by the sip server ?
> >>>>
> >>>>Thanks
> >>>>
> >>>>
> >>>>Simon
> >>>>
> >>>>
> >>>>------------------------------------------------------------------
> >>>>--
> >>>>--
> >>>>--
> >>>>
> >>>>_______________________________________________
> >>>>Serusers mailing list
> >>>>serusers at lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers
> >>>
> >>>
> >>--
> >>Voice System
> >>http://www.voice-system.ro
> >>
> >>_______________________________________________
> >>Serusers mailing list
> >>serusers at lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers
> >
> >
> >
> 
> --
> Voice System
> http://www.voice-system.ro