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Signalling System No. 7 (SS7) is a set of telephony signaling protocols developed in the 1970s that is used to setup and teardown telephone calls on most parts of the global public switched telephone network (PSTN). The protocol also performs number translation, local number portability, prepaid billing, Short Message Service (SMS), and other ...
The ISDN (Integrated Services Digital Network) User Part or ISUP is part of Signaling System No. 7 (SS7), which is used to set up telephone calls in the public switched telephone network (PSTN). It is specified by the ITU-T as part of the Q.76x series.
The Short Message protocol itself is defined by 3GPP TS 23.040 for the Short Message Service - Point to Point (SMS-PP), [2] and 3GPP TS 23.041 for the Cell Broadcast Service (CBS). [3] Four MAP procedures are defined for the control of the Short Message Service: [1] Mobile Originated (MO) short message service transfer;
The Stream Control Transmission Protocol (SCTP) is a computer networking communications protocol in the transport layer of the Internet protocol suite.Originally intended for Signaling System 7 (SS7) message transport in telecommunication, the protocol provides the message-oriented feature of the User Datagram Protocol (UDP), while ensuring reliable, in-sequence transport of messages with ...
Session module: as per directions from the Signalling System No. 7 (SS7) protocol stack's Mobile Application Part (MAP), it receives and sends out session IDs from the session ID pool, and maintains and destroys the sessions. MAP layer: Mobile Application Part is present both on the server and on the MS.
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Signalling System No. 7 (SS7/C7): Protocol, Architecture, and Services. Indianapolis: Cisco Press. ISBN 1-58705-040-4. sigtran.org - Archived SIGTRAN website. IEC Tutorial [1] - IEC SS7 over IP (SIGTRAN) protocols [dead] Sergey Puzankov, Dmitry Kurbatov: How to Intercept a Conversation Held on the Other Side of the Planet, 2014-05-22, Positive ...
These are realized using Intelligent Network Application Part (INAP) that sits above Transaction Capabilities Application Part (TCAP) on the SS7 protocol stack. The TCAP is part of the top or 7th layer of the OSI layer breakdown. SCPs are connected with either SSPs or STPs. This is dependent upon the network architecture that the network ...