
Explore telecommunication foundations by defining a chain of information between sender and receiver, and examining how mediums—from post offices to digital networks—carry voice and data across distances.
Trace the history and architecture of the public switched telephone network (PSTN), from private home wiring and early signaling to digital SS7 interconnections and global deregulation milestones.
Understand how the public switched telephone network connects homes via the local loop to central offices and routes calls through switching stages.
Explore how telephone networks route calls from international gateways to local exchanges using area codes and multiplexers. Understand circuit switching and transmission media like copper, fiber, and wireless.
Explore ss7 call flow across service switching points and signaling transfer points, the role of service control points and the database, and how media gateways enable pstn to ip voice.
Explore wireless technology foundations, GSM architecture, and roaming. Learn about cell sites, frequency division multiplexing, TDMA, CDMA, and IP core networks shaping mobile service.
Explore spectrum allocation, frequency planning, and interference management in cellular networks, including hexagonal cells, uplink and downlink bands, gsm, and regulatory spectrum auctions.
GSM defines the second-generation digital cellular network using TDMA to support global mobile communications. The lecture explains spectrum scarcity drives global standardization, enabling cross-border interoperability through coordinated radio frequency bands.
Explore GSM as a globally accepted digital cellular standard, established in 1980, with three major systems: switching, base station subsystem, and operations support, and SIM cards that store subscriber data.
Explore the GSM architecture and its four components, including the network switching subsystem, authentication center, base station controller, and base transceiver stations, plus the operation support systems.
Explore how mobile stations use identifiers such as IMSI and IMEI to authenticate with base stations via control channels, enabling roaming, home network recognition, and subscriber identity.
Learn how voice call setup traverses control channels through MSE and MSC, signals via S2P to PSTN, and handles roaming and long-distance transfers across mobile networks.
Master voice call handover basics for seamless mobility as devices switch between cell areas and regions, including soft and external handovers.
Explore the data services flow in GSM networks, from low-speed data 14 kbps to 64 kbps, through SMS and MMS, to GPRS 2.5G packet data and internet access.
Analyze how GSM operators manage business operations and network data flow from authentication centers to prepaid billing and roaming settlements.
Explore the concept of OSS and BSS, and how they coordinate customer relationship management, billing, provisioning, inventory, interconnect, and analytics across a telecom ecosystem.
Monitor service availability as the key to reliable GSM wireless mobility by coordinating application systems, network operation management systems, and security operations centers to ensure service delivery and revenue generation.
Explore the evolution of GSM wireless networks, including packet-switch networks, seamless handover, identity concepts, and the shift toward IP-based convergence and global mobility.
In the evolution of cellular wireless technology by European Telecommunication Standardization Institute(ETSI) came out with enhanced TDMA based Global System for Mobile(GSM) Technology that was widely adopted by almost 90% of the world except North America that were already on CDMA technology for cellular wireless communication.This technology was developed for a full scale roaming and interoperability across globe. While world is moving toward 3G, 4G, LTE, IMS and 5G, GSM is still co-existing in almost everywhere in the world, because transition to these new technology requires huge capital expenditure.
In this course we will study about the architecture of GSM wireless technology with focus on fundamentals and easy learning through mapping the architectural concept with OSI and internet architecture. The course builds up the understanding from basic of telephony and slowly moving toward most complex IP and SS7 architecture of network that co-exist today.
Apart from architecture and call flow, the management of network and business application system has been explained to complete the 360 degree view of GSM networks.
This course will help you to explore the service provider environment and how they manage the business of air-time selling. You will be better equipped with knowledge to intelligently ask questions and engage in the discussion among telecommunication eco-system partners and service providers.