Page 537 - Computer_Science_F5

Computer Science BSS-related functions like radio channel establishment and
release, handover management, and paging. The DTAP layer
is responsible for exchanging signaling messages between the
MSC and Mobile Station (MS), while the SCCP layer provides
connection-oriented and connectionless services. BSSAP
FOR ONLINE READING ONLY
enables the transfer of Mobility Management and Session
Management information, allowing the allocation of traffic
channels, management of radio resources, and coordination of
voice and data communication in cellular networks.
SS7 Signaling System No. 7 (SS7) is an international
(Signaling telecommunication protocol standard that facilitates the exchange
System No. 7) of information and control signals among network elements in a
Public Switched Telephone Network (PSTN). It comprises a set
of telephony signaling protocols used for call setup and teardown
in most parts of the global PSTN. SS7 enables advanced calling
features like call routing, billing, and Short Message Service
(SMS). It also plays a crucial role in services such as number
translation, local number portability, and prepaid billing. As
a critical component of modern telecommunications systems,
SS7 provides the necessary signaling and control for various
network services and capabilities.

528
Tanzania Institute of Education (TIE) for Advanced Secondary Schools

Computer Science Form 5.indd 528 23/07/2024 12:35