Documents related to 'PSTN'
2001, RFC3136: The SPIRITS Architecture
2002, RFC3398: Integrated Services Digital Network (ISDN) User Part (ISUP) to Session Initiation Protocol (SIP) Mapping
2003, RFC3578: Mapping of Integrated Services Digital Network (ISDN) User Part (ISUP) Overlap Signalling to the Session Initiation Protocol (SIP)
2004, RFC3807: V5.2-User Adaptation Layer (V5UA)
2005, RFC3976: Interworking SIP and Intelligent Network (IN) Applications