Re: [Sip-implementors] Multiple redirect responses in single transaction

2010-02-23 Thread Anders Kristensen
Paul, Unless I'm much mistaken proxies can only forward one non-2xx final response upstream. Multiple early-dialogs don't change that. Thanks, Anders On 2/22/2010 1:40 PM, Paul Kyzivat wrote: > At end... > > Aaron Clauson wrote: >>> -Original Message- >>> From: Dale Worley [mailto:dwor.

Re: [Sip-implementors] Query - are *header* parameters (other than tag) of From and To part of dialog state?

2010-02-22 Thread Anders Kristensen
Section 12.2.1.1 of 3261 talks about how the UAC constructs mid-dialog requests and it concerns itself with how From and To *URI* and tags are set. There's nothing in there suggesting that header parameters MUST or even SHOULD be retained. The part about 2543 compatibility also does not talk a

Re: [Sip-implementors] Software to create SIP flows?

2008-11-30 Thread Anders Kristensen
http://sourceforge.net/projects/callplot Iñaki Baz Castillo wrote: > Hi, is there any software tool (running over Linux if's possible) > which allows creating SIP flows in text format? > I want to write some flows in the same format as the SIP flows > appearing in RFC3261 and so. > > PD: I'm NOT

Re: [Sip-implementors] Protocol to interact with a voicemail server?

2008-09-08 Thread Anders Kristensen
Inaki, I think that all of what you ask for can probably be achieved through some combination of HTTP/HTML/flash, IMAP (possibly including extensions being developed in the lemonade WG) and SIP MWI. Vendors may currently use proprietary mechanisms for voicemail access from desktop phones but I

Re: [Sip-implementors] question on RFC5057 Multiple Dialog Usages in SIP

2008-08-05 Thread Anders Kristensen
Also, the 2xx and the NOTIFY may not follow the exact same path: 2xx traverses all nodes that the SUBSCRIBE traversed whereas the NOTIFY will only need to traverse the subset of proxies that record-routed the SUBSCRIBE. Hence, the NOTIFY may very well arive at the UAC before the 2xx even withou

Re: [Sip-implementors] Is valid a retransmissions from differentaddress:port ?

2008-07-14 Thread Anders Kristensen
a new transaction and so would likely be rejected because the CSeq is not incremented. Anders > > Thanks, > Paul > > Iñaki Baz Castillo wrote: >> El Lunes, 14 de Julio de 2008, Anders Kristensen escribió: >> >>>> But I'm not speaki

Re: [Sip-implementors] Is valid a retransmissions from differentaddress:port ?

2008-07-14 Thread Anders Kristensen
Iñaki Baz Castillo wrote: > El Lunes, 14 de Julio de 2008, Anders Kristensen escribió: >> Inaki, >> >> I think you're outside the specs here. > > Why? Of course my aim is being specs compliant, but I don't know which are > the > specs for the case

Re: [Sip-implementors] Is valid a retransmissions from differentaddress:port ?

2008-07-14 Thread Anders Kristensen
Inaki, I think you're outside the specs here. What you propose makes sense but a word of warning: don't make routing or authorization decisions based on source IP/port. Not that I'd recommend doing so anyway. Anders Iñaki Baz Castillo wrote: > El Lunes, 14 de Julio de 2008, Iñaki Baz Castillo

Re: [Sip-implementors] quoted URI parameters (especially, tgrp)

2008-05-23 Thread Anders Kristensen
inline... Attila Sipos wrote: > It's not legal. > > The " would have to be escaped > > So this would be ok > Contact: > > I mean, I don't know for sure it's not legal but > such a trivial change (to allow the ") is so > unnecessary that I doubt it would be allowed. > It would break all SIP par

Re: [Sip-implementors] Why SIP abnf is so permissive???

2008-04-01 Thread Anders Kristensen
Another small thing: continuation lines can start with horizontal tab in addition to space. Anders Frank W. Miller wrote: > > I've been following this discussion for a bit. I agree that the grammar is > probably overly permissive but it is what it is. Just for fun, I decided to > contribute a

Re: [Sip-implementors] Is NOTIFY messages a MUST for Refer based Transfers

2008-02-22 Thread Anders Kristensen
Paul Kyzivat wrote: > I think the part that is not clearly specified is when the referee may > terminate the subscription. It must send at least one NOTIFY, but I > think it principle it could set the subscription state to terminated in > the very first NOTIFY if it wanted, even though the ref