
Opera Mini enables you to take your full Web experience to your phone. Stay in touch with your friends on Facebook, Twitter, get your e-mail on the go, do your online banking. There are no limits — Opera Mini is the quick, easy and secure way to get any Web page you want.
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OnMobile, a telecom value added srvices company, has announced a mobile marketing offering, Ad Ring Back Tones (Ad RBT). When a user subscribes to Ad RBT, callers to that user will be presented with audio ads, which are personalised to the caller's profile. The OnMobile Ad RBT platform has a unique call-toaction feature that allows users to respond to the advertisement instantly with the click of a single key. The audio ads can be in any regional language, making this solution very attractive to the consumer and to the Indian advertisers.
Flexibility:
- Supports multiple carrier technologies including GSM, CDMA, and Landlines.
- Enables users to access features to customize via different interaction modes including Voice-DTMF, WAP, and SMS.
- Supports both Pre-paid and Post-paid mobile phone users.
- Provides multilingual support across all interaction modes: With multilingual support, users can browse content in different languages-Spanish, Japanese, or Hindi.
The broad guidelines for implementation and auctioning of radio spectrum for 3G and Wimax have been devised and the final draft will be approved and released within a week, telecom minister A. Raja said here Friday.
'Broad guidelines for rolling out 3G services have been devised and we need some inputs from the finance ministry after which the guidelines will be forwarded to the Telecom Commission,' Raja told reporters on the sidelines of a function here. Link
GSM network is designed by using digital wireless technology. It offers compatible wireless services to all mobile users in all over the world. The basic requirements for GSM are following:
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Services
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Quality of services and security
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Radio frequency utilization
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Network
Services: The services, which are provided by the system, should be potable to all Mobile Stations or Mobile Phones so that it can b used in all over the world.
Quality of services and security: The quality of both voice and data services of GSM should be good. The voice data is encoded in digital form by using a modulation technique i.e.Gussian Minimum Shift Keying (GMSK).The security features should be provided by the system to protect the network against unauthorized users.
Radio frequency utilization: The system should use the available band of frequencies (For uplink: 890-915MHz & For downlink: 935-960MHz) efficiently.
Network: Network designers manage the identification and numbering plans while switching and mobility management based upon signaling system i.e. Signaling System Number 7(SS7).
GSM Architecture
The main component groups of GSM architecture are:
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Mobile Stations (MSs)
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Base Station System (BSS)
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Network and Switching Subsystem (NSS)
Mobile Stations (MSs):
The Mobile Station (MS) consist of two operational parts.
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Mobile Equipment (ME)
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Subscriber Identity Module (SIM)
Mobile Equipment (ME): This is the hard ware used by the subscriber to access the network and it has a unique identity number known as International Mobile Equipment Identity (IMEI).
Subscriber Identity Module (SIM): This is a type of electronic card that is plugs into ME and contains detailed information about the mobile subscriber.
Base Station System (BSS):
BSS is central equipment, which is located at the cell site. It provides the link between MS and NSS. The BSS consists of two operational parts.
Base Transceiver Station (BTS): BTS consists of transmitting and receiving antennas and signaling equipment that provide air interface for a cell to route the call. BTS communicates with the MS.A single BTS can support one or more cells.
Base Station Controller (BSC): All switching functions, which are performed in MSC, are controlled by BSC. It also supports handoff strategies and allocate or release temporary channels for those users whose needed handoff. Several BTSs can be controlled by a single BSC and one MSC can serve many BSCs
Network Switching Subsystem (NSS)
It is the main switching center of GSM network. NSS includes the following:
Mobile Switching Center (MSC): It is the basic unit of NSS, which supports call-switching or routing functions. Its purpose is the same as that of telephone exchange but due to advanced wireless technology, its working is much better than that of exchange. Each MSC provides coverage to a defined geographic area only.
Home Location Register (HLR): For subscriber its a reference data base. Current location of MS, identification numbers and various addresses are maintained in it.
Visitor Location Register (VLR): It̢۪s also a type of database. When an MS moves from home location to a visited location then its location is registered as a visitor in the VLR of visited system and this information is also updated in HLR of MS, by the VLR.
Equipment Identity Register (EIR): Its again a type of database, which contains information about MS equipment and check and identify its international validity of hardware and software to work properly.
Authentication center (AUC): Its a processing center and is normally worked together with HLR.Like HLR its also require to continuously access or update subscribers data. Its main purpose is to provide data security features to authenticate the subscriber.
Code division multiple access (CDMA) is a form of multiplexing and a method of multiple access to a physical medium such as a radio channel, where different users use the medium at the same time thanks to using different code sequences.
A number of terms are used to refer to CDMA implementations. The original US standard defined by QUALCOMM was known as IS-95, where IS refers to an Interim Standard of the US Telecommunications Industry Association. IS-95 is often referred to as the second generation (2G) cellular, or as cdmaOne (the QUALCOMM brand name). CDMA has been submitted for approval as a mobile air interface standard to the International Telecommunication Union (ITU).
The Emergency Number worldwide for Mobile is 112. If you find yourself out of the coverage area of your mobile network and there is an emergency, dial 112 and the mobile will search any existing network to establish the emergency number for you, and interestingly this number 112 can be dialed even if the keypad is locked. Try it out.
CompareIndia.com one-stop destination to select electronic products from a cross-section of 32 categories such as Mobile Phones, Laptops, MP3 Players, Washing Machines, Air Conditioners and the like and compare their features and prices. The website also offers you the ability to view and compare prices for products offered by sellers. The ultimate aim is to help you make the best buying decision.
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