Signaling protocol
A signaling protocol is a type of communications protocol for encapsulating the signaling between communication endpoints and switching systems to establish or terminate a connection and to identify the state of connection. The following is a list of signaling protocols: ALOHA Digital Subscriber System No. 1 (EDSS1) Dual-tone multi-frequency signaling H.248 H.323 H.225.0 Jingle Media Gateway Control Protocol (MGCP) Megaco Regional System R1 NBAP (Node B Application Part) Signalling System R2 Session Initiation Protocol Signaling System No. 5 Signaling System No. 6 Signaling System No. 7 Skinny Client Control Protocol (SCCP, Skinny) Q.931 QSIG Network protocols Telephony signals