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Roaming
Roaming is a wireless Wireless communication (or just wireless, when the context allows) is the transfer of information (''telecommunication'') between two or more points without the use of an electrical conductor, optical fiber or other continuous guided transm ... telecommunication term typically used with mobile devices, such as mobile phones. It refers to a mobile phone being used outside the range of its native network and connecting to another available cell network. Technical definition In more technical terms, roaming refers to ''the ability for a cellular network, cellular customer to automatically make and receive voice calls, send and receive data, or access other services, including home data services, when travelling outside the geographical coverage area of the home Telecommunications network, network, by means of using a visited network''. For example: should a subscriber travel beyond their cell phone company's transmitter range, their cell phone would ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Periodic Location Update
Mobility management is one of the major functions of a GSM or a UMTS network that allows mobile phones to work. The aim of mobility management is to track where the subscribers are, allowing calls, Short message service, SMS and other GSM services, mobile phone services to be delivered to them. Location update procedure A GSM or UMTS network, like all cellular networks, is basically a radio network of individual cells, known as base stations. Each base station covers a small geographical area which is part of a uniquely identified #Location area, location area. By integrating the coverage of each of these base stations, a cellular network provides a radio coverage over a much wider area. For GSM, a base station is called a base transceiver station (BTS), and for UMTS it is called a Node B. A group of base stations is named a location area, or a #Routing area, routing area. The location update procedure allows a mobile phone, mobile device to inform the cellular network whenever i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wireless LAN
A wireless LAN (WLAN) is a wireless computer network that links two or more devices using wireless communication to form a local area network (LAN) within a limited area such as a home, school, computer laboratory, campus, or office building. This gives users the ability to move around within the area and remain connected to the network. Through a Gateway (telecommunications), gateway, a WLAN can also provide a connection to the wider Internet. Wireless LANs based on the IEEE 802.11 standards are the most widely used computer networks in the world. These are commonly called Wi-Fi, which is a trademark belonging to the Wi-Fi Alliance. They are used for home and small office networks that link together laptop computers, printer (computing), printers, smartphones, Web TVs and gaming devices through a Wireless router, wireless network router, which in turn may link them to the Internet. Hotspot (Wi-Fi), Hotspots provided by routers at restaurants, coffee shops, hotels, libraries, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Vehicle Charging Network
An electric vehicle charging network is an infrastructure system of charging stations to recharge electric vehicles. The term electric vehicle infrastructure (EVI) may refer to charging stations in general or the network of charging stations across a nation or region. The proliferation of charging stations can be driven by charging station providers or government investment, and is a key influence on consumer behaviour in the transition from internal combustion engine vehicles to electric vehicles. While charging network vendors have in the past offered proprietary solutions limited to specific manufacturers (ex. Tesla), vendors now usually supply energy to electric vehicles regardless of manufacturer. Maps Charging station mapping services typically give the location, power, network, and connector type of publicly available charging stations, while more advanced services give the price and live availability of stations. Large charging networks provide maps of their own stati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prepaid Mobile Phone
A prepaid mobile device, also known as a pay-as-you-go (PAYG), pay-as-you-talk, pay and go, go-phone, or prepay, is a mobile device such as a smartphone, phone for which credit is purchased in advance of service use. The purchased credit is used to pay for telecommunications services at the point the service is accessed or consumed. If there is no credit, then access is denied by the cellular network or Intelligent Network. Users can top up their credit at any time using a variety of payment mechanisms such as the Pay as you go, Pay-as-you-go (PAYG). In 2020, 155 countries had the mandatory SIM registration laws for the prepaid mobile SIM cards such as the mandatory Know Your Customer (KYC) or other type of Identity verification service, legal identification verification at the point of sale to prevent the anonymous use of unregistered prepaid mobile which facilitates criminal or terrorist activities. A burner phone is a prepaid phone number specifically purchased without the Kn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Handoff
In cellular telecommunications, handover, or handoff, is the process of transferring an ongoing call or data session from one channel connected to the core network to another channel. In satellite communications it is the process of transferring satellite control responsibility from one earth station to another without loss or interruption of service. Terminology American English uses the term ''handoff'', and this is most commonly used within some American organizations such as 3GPP2 and in American originated technologies such as CDMA2000. In British English the term ''handover'' is more common, and is used within international and European organisations such as ITU-T, IETF, ETSI and 3GPP, and standardised within European originated standards such as GSM and UMTS. The term handover is more common in academic research publications and literature, while handoff is slightly more common within the IEEE and ANSI organisations. Purpose In telecommunications there may be differ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
T-Mobile Roaming Welcome Message - Redvers
T-Mobile is the brand of telecommunications by Deutsche Telekom. T-Mobile may also refer to: Deutsche Telekom's current and former subsidiaries * T-Mobile US, an American wireless network operator known simply as "T-Mobile" * T-Mobile Polska, a Polish mobile phone network operator * T-Mobile Czech Republic, a Czech wireless network operator * T-Mobile UK, a former UK mobile phone network operator which merged with the former Orange UK to create EE * Magenta Telekom, an Austria wireless network operator formerly known as T-Mobile Austria * Odido, a Dutch mobile phone network operator formerly known as T-Mobile Netherlands Products * T-Mobile MDA, a series of T-Mobile-branded phones * T-Mobile 4G LTE CellSpot, a femtocell Sporting venues * T-Mobile Arena, a multi-purpose arena in Las Vegas * T-Mobile Center, a multi-purpose arena in Kansas City, Missouri * T-Mobile Park T-Mobile Park is a retractable roof ballpark in Seattle, Washington, United States. It is the home stadium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobile Application Part
The Mobile Application Part (MAP) is an SS7 protocol that provides an application layer for the various nodes in GSM and UMTS mobile core networks and GPRS core networks to communicate with each other in order to provide services to users. The Mobile Application Part is the application-layer protocol used to access the Home Location Register, Visitor Location Register, Mobile Switching Center, Equipment Identity Register, Authentication Centre, Short message service center and Serving GPRS Support Node (SGSN). Facilities provided The primary facilities provided by MAP are: * Mobility Services: location management (to support roaming), authentication, managing service subscription information, fault recovery, * Operation and Maintenance: subscriber tracing, retrieving a subscriber's IMSI * Call Handling: routing, managing calls whilst roaming, checking that a subscriber is available to receive calls * Supplementary Services * Short Message Service * Packet Data Protoco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISDN User Part
The ISDN (Integrated Services Digital Network) User Part or ISUP is part of Signaling System No. 7 (SS7), which is used to set up telephone calls in the public switched telephone network (PSTN). It is specified by the ITU-T as part of the Q.76x series.. When a telephone call is set up from one subscriber to another, several telephone exchanges could be involved, possibly across international boundaries. To allow a call to be set up correctly, where ISUP is supported, a switch will signal call-related information like called party number to the next switch in the network using ISUP messages. The telephone exchanges may be connected via T1 or E1 trunks which transport the speech from the calls. These trunks are divided into 64 kbit/s timeslots, and one timeslot can carry exactly one call. Regardless of what facilities are used to interconnect switches, each circuit between two switches is uniquely identified by a circuit identification code (CIC) that is included in the ISU ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Network Switching Subsystem
Network switching subsystem (NSS) (or GSM core network) is the component of a GSM system that carries out call out and mobility management functions for mobile phones roaming on the network of base stations. It is owned and deployed by mobile phone operators and allows mobile devices to communicate with each other and telephones in the wider public switched telephone network (PSTN). The architecture contains specific features and functions which are needed because the phones are not fixed in one location. The NSS originally consisted of the circuit-switched core network, used for traditional GSM services such as voice calls, SMS, and circuit switched data calls. It was extended with an overlay architecture to provide packet-switched data services known as the GPRS core network. This allows GSM mobile phones to have access to services such as WAP, MMS and the Internet. Mobile switching center (MSC) Description The mobile switching center (MSC) is the primary service ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MSISDN
MSISDN ( ) is a number uniquely identifying a subscription in a Global System for Mobile communications or a Universal Mobile Telecommunications System mobile network. It is the mapping of the telephone number to the subscriber identity module in a mobile or cellular phone. This abbreviation has several interpretations, the most common one being "Mobile Station International Subscriber Directory Number".The conclusion ("most common") is drawn from the recent documentation from 3GPP and Open Mobile Alliance, please see the Abbreviation section above The MSISDN and international mobile subscriber identity (IMSI) are two important numbers used for identifying a mobile subscriber. The IMSI is stored in the SIM (the card inserted into the mobile phone), and uniquely identifies the mobile station, its home wireless network, and the home country of the home wireless network. The MSISDN is used for routing calls to the subscriber. The IMSI is often used as a key in the home location re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PSTN
The public switched telephone network (PSTN) is the aggregate of the world's telephone networks that are operated by national, regional, or local telephony operators. It provides infrastructure and services for public telephony. The PSTN consists of telephone lines, fiber-optic cables, microwave transmission links, cellular networks, communications satellites, and undersea telephone cables interconnected by switching centers, such as central offices, network tandems, and international gateways, which allow telephone users to communicate with each other. Originally a network of fixed-line analog telephone systems, the PSTN is now predominantly digital in its core network and includes terrestrial cellular, satellite, and landline systems. These interconnected networks enable global communication, allowing calls to be made to and from nearly any telephone worldwide. Many of these networks are progressively transitioning to Internet Protocol to carry their telephony tra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
