On Fri, 2005-10-28 at 14:10 +0530, Nataraju A B wrote: > I have a simple doubt about CSeq number in an out-going message > > Is it ok to have the same CSeq number for a REGISTER request and > SUBSCRIBE request.. ????
As others have said, the answer to this is yes. But that assumes that the REGISTER and the SUBSCRIBE are not in the same dialog (do not have the same Call-ID, from-tag, and to-tag) (or are in opposite directions in the dialog). If I remember correctly, there is no situation that would cause a REGISTER and SUBSCRIBE to be in the same dialog, but if they ever were, then they could not have the same CSeq. Within a given dialog and a given direction in the dialog, all requests are numbered sequentially by CSeq. As for REGISTER establishing a dialog: REGISTER establishes a dialog in every way except that it does not establish a route set -- every request is routed de novo. Whether you wish to call this "establishing a dialog" or not is a choice of terminology. Dale _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
