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在 IP Networks 上传输基于分组的 PSTN signaling。
为实现与 PSTN 的互通,IP 网络需要在 IP 节点之间传输 signaling,例如在 Signaling Gateway 与 Media Gateway Controller 或 Media Gateway 之间传输 Q.931 或 SS7ISUP 消息。
请参见 IETF 的工作组 sigtran-charter。
RUDP:Reliable UDP,SCTP 的前身。只是一个(已过期的)Internet Draft,不过 Cisco 仍在使用其某个版本。
SCTP:Stream Control Transmission Protocol,RFC2960
SCTP 为以下协议提供 PPID(Payload Protocol IDentifiers,参见 IANA 的列表):
M2UA:Signaling System 7 (SS7) Message Transfer Part (MTP)2 - User Adaptation Layer RFC3331
M2PA:Signaling System 7 (SS7) Message Transfer Part 2 (MTP2) - User Peer-to-Peer Adaptation Layer (M2PA) RFC4165
M3UA:Signaling System 7 (SS7) Message Transfer Part (MTP)3 - User Adaptation Layer (M3UA) RFC4666
IUA:ISDN Q.921-User Adaptation Layer RFC4233
SUA:Signalling Connection Control Part User Adaptation Layer (SUA) RFC3868
V5UA:V5.2-User Adaption Layer (V5UA) RFC3807
H248:MEGACO
BICC:Bearer Independent Call Control
TALI:
DUA:Digital Private Network Signaling System (DPNSS)/Digital Access Signaling System 2 (DASS 2)
Extensions to the IUA Protocol RFC4129
ASAP:
ENRP:
H323:
M2TP:
它们又可以承载:
ISDN:Integrated Services Digital Network
Q.921:ISDN Q.921-User Adaptation Layer RFC 3057
Q.931:ISDN user-network interface layer 3 specification for basic call control
ISUP:ISDN User Part
MTP3:Message Transfer Part Level 3
SCCP:Signalling Connection Control Part
Imported from https://wiki.wireshark.org/SIGTRAN on 2020-08-11 23:24:41 UTC