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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;
In North America, SS7 links are normally indirectly connected between switching exchanges using an intervening network of STPs (Signaling Transfer Points). This indirect connection is called quasi-associated signaling , which reduces the number of SS7 links necessary to interconnect all switching exchanges and SCPs in an SS7 signaling network.
A Signal Transfer Point (STP) is a node in an SS7 network that routes signaling messages based on their destination point code in the SS7 network. [1] It works as a router that relays SS7 messages between signaling end-points (SEPs) and other signaling transfer points (STPs).
The Message Transfer Part (MTP) is part of the Signaling System 7 (SS7) used for communication in Public Switched Telephone Networks. MTP is responsible for reliable, unduplicated and in-sequence transport of SS7 messages between communication partners. MTP is formally defined primarily in ITU-T recommendations Q.701, Q.702, Q.703, Q.704 and Q.705.
An SS7 point code is an address for the SS7 telephone switching system. It is similar to an IP address in an IP network. It is a unique address for a node (Signaling Point, or SP), used in MTP layer 3 to identify the destination of a message signal unit (MSU).
An SSP telephone exchange receives a call to an 0800 number. This causes a trigger within the SSP that causes an SCP (Service Control Point) to be queried using SS7 protocols (INAP, TCAP). The SCP responds with a geographic number, e.g. 0121 XXX XXXX, and the call is actually routed to a phone. By this architecture:
Every other divisional round game has a spread of at least 6.5 points, and both Saturday games have spreads of at least 9.5 points. The Texans are 9.5-point underdogs at the Baltimore Ravens on ...
SS7 network structure; SEPs are labeled SSP and SCP. In telecommunications, a Signaling End Point (SEP) is an SS7 endpoint. [1] This is to be contrasted with a Signal Transfer Point (STP). [2] Examples include: Intelligent Network components such as Service Control Points (SCPs) and Service Switching Points (SSPs)