Re: [Sip-implementors] regrading register authorization filed (nc parameter)

2012-01-12 Thread Worley, Dale R (Dale)
> From: RAVI KUMAR [raviku...@gmail.com] > > In my case next register with same call id but ceq incremented so it > is a re-register message with same cnonce value. > But nc value is not incremented .Is this issue ? If yes on what > parameter should we increase the nc value . > If it is a successi

Re: [Sip-implementors] Authorization of incoming call

2012-01-12 Thread Pavesi, Valdemar (NSN - US/Irving)
Beatty explanation , and *you* will not pay the call for *caller*. -Original Message- From: sip-implementors-boun...@lists.cs.columbia.edu [mailto:sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of ext Paul Kyzivat Sent: Thursday, January 12, 2012 11:08 AM To: sip-implementors@l

Re: [Sip-implementors] Authorization of incoming call

2012-01-12 Thread Paul Kyzivat
What is the real concern here? Why would you care if the caller has registered? SIP does not require registration to send requests. I guess you either are concerned that the caller is somehow authorized to call you, or call anybody, or else you are concerned with whether you can trust the ident

[Sip-implementors] regrading register authorization filed (nc parameter)

2012-01-12 Thread RAVI KUMAR
Hi All, Need your suggestion on this . I have doubt on authorization field present in sip request message Please refer below link. http://www.ietf.org/rfc/rfc2617.txt The Authorization Request Header The client is expected to retry the request, passing an Authorization header line, which

Re: [Sip-implementors] Authorization of incoming call

2012-01-12 Thread Vineet Menon
Hi, Again, you can force route all calls thru the proxy so that calls will always be routed thru the proxy. So that, a session hijacking can be avoided. In addition to this, I wanted to clarify whether the use of proxy avoid another user from calling your UA without registering to proxy ? eg. usi