The OMC functions include fault management (maintenance tasks), administration and commercial operation (subscription, charging, statistics etc.), security management, network con fi guration, operation and performance management.
What is nmc and OMC?
Network Management Centre and Operation and Maintenance Centre (NMC and OMC)
What is GSM architecture?
The GSM architecture consists of three major interconnected subsystems that interact with themselves and with users through certain network interface. The subsystems are Base Station Subsystem (BSS), Network Switching Subsystem (NSS) and Operational Support Subsystem (OSS).
What is HLR in mobile communication?
Home location register (HLR) The home location register (HLR) is a central database that contains details of each mobile phone subscriber that is authorized to use the GSM core network.
What is mobile Switching Centre in telecommunication?
A Mobile Switching Center (MSC) is a core part of the GSM/CDMA network system. It acts as a control center of a Network Switching Subsystem (NSS). All mobile communications are routed from the base station through the MSC. The MSC is responsible for handling voice calls and SMS including other services like FAX.
What is optimum moisture content of soil?
Optimum Moisture Content (OMC) is the water content at which the soil attains maximum dry density. Maximum Dry Density (MDD) is the dry density of soil corresponding to Optimum Moisture Content.
What is the basic structure of GSM?
What are the three major components of GSM?
The GSM network is divided into three major systems: the switching system (SS), the base station system (BSS), and the operation and support system (OSS).
What is HLR Query?
An HLR Lookup is a real time query of subscriber information stored in a mobile network operator’s Home Location Register (HLR). An HLR is a database with context and status information about every mobile phone in a mobile network and forms the backbone of subscriber data.
What is HLR and VLR?
A HLR is a database of user (subscriber) information, i.e., customer profiles, used in mobile (cellular) networks. A VLR is a database, similar to a HLR, which is used by the mobile network to temporarily hold profiles of roaming users (users outside their home area).
How does mobile switching work?
If you want to switch and keep your existing phone number, text ‘PAC’ to 65075 to begin the process. Your provider will reply by text within a minute. They will send you your switching code, called a ‘PAC’, which will be valid for 30 days.