The SIP mailing list is meant only for the further development of SIP and its extensions. Questions regarding implementation and understanding of SIP should be directed to the SIP implementors list below, not the SIP mailing list. Never send a message to both lists.
SIP-implementors is a mailman-managed list; to subscribe to it, send mail to sip-implementors-request@lists.cs.columbia.edu with "subscribe sip-implementors" in the body or use the web interface.
Last updated by Henning Schulzrinne