Hi Pranab Since the list of Contact bindings in left unchanged, IMO, an initial Register request with 'no' Contact header would return an empty list of bindings in the 200 OK response ie there will be 'no' Contact header in the response.
Regards, Tarun Gupta Aricent -----Original Message----- From: pranab sahoo [mailto:[email protected]] Sent: Monday, September 03, 2012 4:28 PM To: Tarun2 Gupta Cc: sip-implementors Subject: Re: [Sip-implementors] regarding user behaviour in REGISTRATION request with contact header having no value Hi Tarun, Thanks Tarun. If I will send first time,will it generate any error? thanks and regards pranab On 9/3/12, Tarun2 Gupta <[email protected]> wrote: > Hi Pranab > > A Register request with '0' Contact bindings is equivalent to a > Register request with 'no' Contact header. Such a Register request is > typically used to fetch the current Contacts bindings for a particular > AOR. See RFC 3261, Section 10.2.3 > > 10.2.3 Fetching Bindings > > A success response to any REGISTER request contains the complete list > of existing bindings, regardless of whether the request contained a > Contact header field. If no Contact header field is present in a > REGISTER request, the list of bindings is left unchanged. > > Regards, > Tarun Gupta > Aricent > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > pranab sahoo > Sent: Monday, September 03, 2012 4:04 PM > To: sip-implementors > Subject: [Sip-implementors] regarding user behaviour in REGISTRATION > request with contact header having no value > > Hi all, > > Hope you doing well. > while going through RFC 3261,in page 57(10.2 paragraph) I found > > Contact: REGISTER requests MAY contain a Contact header field with > zero or more values containing address bindings. > > so if we use zero value in contact header,its 100% sured that > REGISTRATION was not successful.So it will generate any error code? > > Thanks in advance. > > thanks and regards > pranab > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > > > > > ====================================================================== > ========= Please refer to > http://www.aricent.com/legal/email_disclaimer.html > for important disclosures regarding this electronic communication. > ====================================================================== > ========= > =============================================================================== Please refer to http://www.aricent.com/legal/email_disclaimer.html for important disclosures regarding this electronic communication. =============================================================================== _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
