https://app.knowbase.one/vault/rfc/docid/3991
RFC4233: Integrated Services Digital Network (ISDN) Q.921-User Adaptation Layer
Network Working Group K. Morneault Request for Comments: 4233 Cisco Systems Obsoletes: 3057 S. Rengasami Category: Standards Track Tridea Works ...
https://app.knowbase.one/vault/rfc/docid/4522
RFC4129: Digital Private Network Signaling System (DPNSS)/Digital Access Signaling System 2 (DASS 2) Extensions to the IUA Protocol
Network Working Group R. Mukundan Request for Comments: 4129 Wipro Technologies Category: Standards Track K. Morneault Cisco Systems ...