[Sip-implementors] CallBack to emergency call

2013-10-24 Thread Manolis Katsidoniotis
Hello folks I have an IMS case where a terminating point for emergency calls (PSAP) is performing callback to the user that placed the original emergency call. It appears that the top most Route header in CallBack INVITE needs to have a Callback timer indication. Does anyone happen to have an ex

Re: [Sip-implementors] Outgoing REFER but no support for incoming NOTIFY.

2013-10-24 Thread Brett Tate
> > Does the request include *any* Allow header field? > > No request do not have any Allow header. Since you only mentioned "request", you might want to check all of the requests and responses from the UA associated with the dialog. However as Paul mentioned, RFC 3261 section 20.5 may be appli

Re: [Sip-implementors] Outgoing REFER but no support for incoming NOTIFY.

2013-10-24 Thread Kumar, Puneet (Puneet)
Hi Paul, > Does the request include *any* Allow header field? No request do not have any Allow header. Thanks, Puneet -Original Message- From: Paul Kyzivat [mailto:pkyzi...@alum.mit.edu] Sent: Thursday, October 24, 2013 9:54 PM To: sip-implementors@lists.cs.columbia.edu Subject: Re: [S

Re: [Sip-implementors] Outgoing REFER but no support for incoming NOTIFY.

2013-10-24 Thread Brett Tate
> I am seeing a case where UAC sends an in-dialog > REFER but do not include "Allow: NOTIFY". > Due to this UAS is not able to send a NOTIFY > with sipfrag back to UAC. > > Is this valid? As far as I know, RFC 3515 assumes referrer supports NOTIFY; however it doesn't indicate that the referrer

Re: [Sip-implementors] Outgoing REFER but no support for incoming NOTIFY.

2013-10-24 Thread Paul Kyzivat
On 10/24/13 10:37 AM, Kumar, Puneet (Puneet) wrote: > Hi All, > > I am seeing a case where UAC sends an in-dialog REFER but do not include > "Allow: NOTIFY". > Due to this UAS is not able to send a NOTIFY with sipfrag back to UAC. > > Is this valid? > What can be use case for not supporting NOTIFY

[Sip-implementors] Outgoing REFER but no support for incoming NOTIFY.

2013-10-24 Thread Kumar, Puneet (Puneet)
Hi All, I am seeing a case where UAC sends an in-dialog REFER but do not include "Allow: NOTIFY". Due to this UAS is not able to send a NOTIFY with sipfrag back to UAC. Is this valid? What can be use case for not supporting NOTIFY? Thanks, Puneet __

Re: [Sip-implementors] SDP Offer Answer Model

2013-10-24 Thread isshed
Thanks Paul and Brett. I have treated as a valid offer because the port is zero. Also, if all of the m lines presents do not have PT list. then I rejected with 488. Thanking you again!! On Wed, Oct 23, 2013 at 8:03 PM, Paul Kyzivat wrote: > On 10/23/13 6:23 AM, Brett Tate wrote: > >> Also I w