HI, I have a Registration Active in IMS. when I want to do a De-Register should I have the to-tag in the Register Message (or) just the REGISTER with expires=0 is sufficient?
-Adi _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
