Re: [Sip-implementors] Cancelling a request

2014-07-20 Thread isshed
Thanks Paul and Brett!! On Tue, Jul 15, 2014 at 8:34 PM, Paul Kyzivat wrote: > On 7/15/14 7:07 AM, Brett Tate wrote: >>> >>> Can there be any case when CANCEL reached to UA2 >>> before INVITE in case od UDP? because the 100 trying >>> can be sent by proxies as well. > > > Yes, 100 is sent hop by

Re: [Sip-implementors] Cancelling a request

2014-07-15 Thread Paul Kyzivat
On 7/15/14 7:07 AM, Brett Tate wrote: Can there be any case when CANCEL reached to UA2 before INVITE in case od UDP? because the 100 trying can be sent by proxies as well. Yes, 100 is sent hop by hop. But CANCEL is itself also hop by hop. So at each hop the cancel is only sent if a 1xx has bee

Re: [Sip-implementors] Cancelling a request

2014-07-15 Thread Brett Tate
> Can there be any case when CANCEL reached to UA2 > before INVITE in case od UDP? because the 100 trying > can be sent by proxies as well. Yes (although no longer as common); as mentioned within RFC 3261 section 28.1, RFC 2543 did not have the same mandate as RFC 3261. "o A UA or proxy cannot s

Re: [Sip-implementors] Cancelling a request

2014-07-15 Thread Rahul Pathak
No, because CANCEL is in dialog message. On Tue, Jul 15, 2014 at 3:39 PM, isshed wrote: > Thanks Rahul and Tarun.. > > Can there be any case when CANCEL reached to UA2 before INVITE in case > od UDP? because the 100 trying can be sent by proxies as well. > > On Tue, Jul 15, 2014 at 3:31 PM, Rah

Re: [Sip-implementors] Cancelling a request

2014-07-15 Thread isshed
Thanks Rahul and Tarun.. Can there be any case when CANCEL reached to UA2 before INVITE in case od UDP? because the 100 trying can be sent by proxies as well. On Tue, Jul 15, 2014 at 3:31 PM, Rahul Pathak wrote: > as per rfc 3261 you can send CANCLE message in this case.

Re: [Sip-implementors] Cancelling a request

2014-07-15 Thread Rahul Pathak
as per rfc 3261 you can send CANCLE message in this case. ___ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors

Re: [Sip-implementors] Cancelling a request

2014-07-15 Thread Tarun2 Gupta
-implementors Subject: [Sip-implementors] Cancelling a request Hi All, I have a doubt in the following scenario. UA has sent INVITE to remote party. It received the 100 Trying. Now user wants to CANCEL the call. Can A CANCEL be sent at this point in time or it can not unless some non-100 provisional

[Sip-implementors] Cancelling a request

2014-07-15 Thread isshed
Hi All, I have a doubt in the following scenario. UA has sent INVITE to remote party. It received the 100 Trying. Now user wants to CANCEL the call. Can A CANCEL be sent at this point in time or it can not unless some non-100 provisional response comes? Thanks, Isshed. ___