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What is third generation of mobile telephony (3G)? 3G referred to as the third generation of cellular technology that permits mobile telephony. and this third-generation standard follows two earlier generations that were deployed on mobile networks and across mobile phones. The ITU (International Telecommunication Union) defined the third generation of mobile telephony standards International Mobile Telecommunications 2000 (IMT-2000) to facilitate growth, increase bandwidth and support more diverse applications. for instance, Global System for Mobile Communications (GSM) technologies could deliver not only voice, also the circuit-switched data across mobile networks at hastens to 14.4 kilobits per second (Kbps). To supporting the mobile multimedia related applications, however, In actual 3G standard had to deliver packet-switched data with better spectral efficiency at far greater speeds.| History of mobile telephony The first-generation (1G) standard got its start within the early ...

Offline Charging allows Subscribers to consume the service without an upfront balance check or balance reservation. Post Service consumption, service usage records in the form of files & batches are processed for charging the Customers. These service usage files are also known as Charging Data Records (CDRs) or Event Data Records (EDRs). As it's not practical to send these large no. of files (which can be of different formats) through different Network nodes directly to the billing system, they are first mediated via a system known as Mediation. It sits between the Network layer and the BSS layer. Mediation system performs operations like: Raw CDRs Collections via PUSH or PULL method. CDRs file format can be ASCII, CSV, Binary, TAP, XML. Validating, Filtering & Parsing the CDRs. Processing/Enriching the records as per the Northbound systems (like Rating Engine, Interconnect System, Roaming Clearinghouse, RA, FMS, Reporting, etc.) requirements. Distributing the pr...