https://app.knowbase.one/vault/rfc/docid/4219
RFC3857: A Watcher Information Event Template-Package for the Session Initiation Protocol (SIP)
Network Working Group J. Rosenberg Request for Comments: 3857 dynamicsoft Category: Standards Track August 2004 A Watcher Information Event Template-Package for ...
https://app.knowbase.one/vault/rfc/docid/4220
RFC3858: An Extensible Markup Language (XML) Based Format for Watcher Information
Network Working Group J. Rosenberg Request for Comments: 3858 dynamicsoft Category: Standards Track August 2004 An Extensible Markup Language (XML) Based Format for Watcher ...