1. Pakdo Life Ka Har Signal
Nayan Shah (082141)
Amit B. Shah (082101)
Deepak (082123)
Ashish Sidiquuie (082107)
Videocon Group
Videocon Industries Limited is an India-based company. The Company's business comprises two
core businesses: the manufacturing, assembly, marketing and distribution of consumer electronic

2. products and home appliances, and oil and gas exploration and production. It manufactures and
assembles and/or distributes a range of consumer electronic products and home appliances,
including color televisions, home entertainment systems, liquid crystal display televisions,
refrigerators, washing machines, air conditioners, small appliances, glass shells (panels and
funnels), compressors/motors and other components. Its subsidiaries include Paramount Global
Ltd., Global Energy Inc., Sky Billion Trading Ltd., Videocon Global Ltd., Venus Corporation
Ltd. and Powerking Corporation Ltd., among others. In March 2010, Videocon Industries Ltd.'s
unit, Videocon Telecommunications Ltd., launched mobile services based on the global system
for mobile platform.
The Videocon group has constantly leveraged a culture of innovation to develop a range of
market re-defining products. The Group has several manufacturing facilities globally and R&D
centers spread across Americas, Europe and Australasia that are creating global quality products
deploying the most up-to-date technology.
Videocon has one of the largest distribution networks in India with a nation-wide presence.
Apart from having a stronghold in the domestic market, the company has a significant market
share in the global arena as well. Videocon exports consumer electronics and home appliances to
markets in the Middle East and Europe, West Asia, Latin America and South East Asia.
Videocon has also present in Stock Exchange.
Officers and directors
Venugopal N. Dhoot Executive Chairman of the Board, Managing Director
K. R. Kim Chief Executive Officer

3. Shekhar Jyoti Vice President - Corporate Human Resources
Vinod Kumar Bohra Company Secretary, Compliance Officer
Pradipkumar N. Dhoot Whole Time Director
Birgit Gunilla Antonio
Nordstrom
Non-Executive Non-Independent Director - Nominee of AB Electrolux
(Publ)
S. Padmanabhan Independent Director
Satya Pal Talwar Non-Executive Independent Director
Technology and Cellular Service Providers in India
Mobile phones were introduced in India a decade ago but within small period of time it has
become an essential thing in our life. Today in India almost all cities, towns and many
villages are covered by major mobile phone operators.

4. Technology
Mobile phone service providers divide each city into small cells and install a mobile phone
tower in each cells so it is also called cellular phones. In cellular service there are two main
technologies – GSM and CDMA. GSM stands for Global System for Mobile Communications
and CDMA stands for Code Division Multiple Access.
GSM
GSM service is available in more than 200 countries and is used by around 2 billion people
worldwide. Normally GSM networks operate in 900 MHz or 1800 MHz. Another important
feature of GSM is Subscriber Identity Module or SIM Card. It is a small smartcard which
contains subscriber information and phonebook. For higher speed data transmission either
GPRS or EDGE can be used in GSM phones.
user needs three things to access GSM network
A billing relationship with a mobile phone operator. This is usually either where services are paid
for in advance of them being consumed (prepaid), or where bills are issued and settled after the
service has been consumed (postpaid).
A mobile phone which is GSM compliant and operates at the same frequency as the operator.
Most phone companies sell phones from third-party manufacturers.
A SIM ("Subscriber Identity Module") card which is activated by the operator once the billing
relationship is established. After activation the card is then programmed with the subscriber's
MSISDN ("Mobile Subscriber Integrated Services Digital Network Number") (the telephone
number). Personal information such as contact numbers of friends and family can also be stored
on the SIM by the subscriber.
CDMA
CDMA is a form of multiplexing which divide signals by random pseudo codes instead of
conventional multiplexing methods like dividing by time or frequency. CDMA is widely used
in cellular networks and global positioning systems (GPS).
GSM
GSM (Global System for Mobile communication) is a digital mobile telephone system that is widely used
in all parts of the world. GSM uses a variation of Time Division Multiple Access (TDMA) and is the most
widely used of the three digital wireless telephone technologies (TDMA, GSM, and CDMA). GSM digitizes

5. and compresses data, then sends it down a channel with two other streams of user data, each in its own
time slot. It operates at either the 900 MHz or 1,800 MHz frequency band.
GSM is the de facto wireless telephone standard in Europe in 1982. GSM has over one billion users
worldwide and is available in more than 190 countries. Since many GSM network operators have roaming
agreements with foreign operators, users can often continue to use their mobile phones when they travel
to other countries.
Mobile Frequency Range Rx: 925-960; Tx: 880-915
Multiple Access Method TDMA/FDM
Duplex Method FDD
Number of Channels 124 (8 users per channel)
Channel Spacing 200kHz
Modulation GMSK (0.3 Gaussian Filter)
Channel Bit Rate 270.833Kb
The Future of GSM
GSM together with other technologies is part of an evolution of wireless mobile telecommunication that
includes High-Speed Circuit-Switched Data (HSCSD), General Packet Radio System (GPRS), Enhanced
Data rate for GSM Evolution (EDGE), and Universal Mobile Telecommunications Service (UMTS).
GSM Network Operators
T-Mobile and Cingular operate GSM networks in the United States on the 1,900 MHz band. GSM
networks in other countries operate at 900, 1,800, or 1,900 Mhz.
GSM Security
GSM security issues such as theft of service, privacy, and legal interception continue to raise significant
interest in the GSM community.
Books on GSM
The digital standard known as the Global
System for Mobile (GSM) has captured a
large share of the global cellular market. This
book aims to bridge the gap between a
reader's basic knowledge of
telecommunications and the complexities of
the 5000-page GSM technical specification. It
describes the system as a whole, covering all
aspects of the standard, including mobile
stations, switching equipment, the radio
interface, infrastructure, transmission
methods, and signaling protocols. System
architects involved in the design of personal communications systems will find the book to be a complete
description of the GSM communications system. It also may serve as a general introduction to digital
cellular systems.

6. Physical Channels, Logical Channels, Network, and Operation explains the basic components,
technologies used, and operation of GSM systems. You will discover why mobile telephone service
providers have upgraded from 1st generation analog systems to more efficient and feature rich 2nd
generation GSM systems. You will also discover how 2nd generation systems are gradually evolving into
3rd generation broadband multimedia systems.
Features Benefits
Visitor Location Register (VLR) The key feature of a mobile phone is the ability

7. to receive and make calls in any area where
coverage is available. This is generally called
roaming from a customer perspective.
Paging The current cellular location of the phone (i.e.
which BTS it is at) is entered into the VLR
record and will be used during a process called
paging when the GSM network wishes to locate
the mobile phone.
Outgoing
calls may be made from the phone to any other
phone on the global through Public Switched
Telephone Network.
Incoming
someone places a call to a mobile phone, they
dial the telephone number (also called a
MSISDN) associated with the phone user and
the call is routed to the mobile phone operator's
Gateway Mobile Switching Centre. The
Gateway MSC, as the name suggests, acts as
the "entrance" from exterior portions of the
Public Switched Telephone Network onto the
provider's network.
Gateway MSC contact the phone is free to roam anywhere in the
operator's network or on the networks of
roaming partners, including in other
countries. So the first job of the Gateway
MSC is to determine the current location of
the mobile phone in order to connect the
call. It does this by consulting the Home
Location Register (HLR)
Routing the call
If the owner of the phone has
previously requested that all incoming
calls be diverted to another number,
known as the Call Forward
Unconditional (CFU) Number, then this
number is stored in the Home Location
Register. CFU number is returned to
the Gateway MSC for immediate
routing to that destination.
Ringing the phone call arrives at the Visiting MSC, the MSRN is
used to determine which phone is being called.
The MSC then pages all the mobile phone
masts in the area in order to inform the phone
that there is an incoming call for it. If the

8. subscriber answers, a speech path is created
through the Visiting MSC and Gateway MSC
back to the network of the person making the
call, and a normal telephone call follows.
Call forwarding. This service gives the subscriber the ability to
forward incoming calls to another number if
the called mobile unit is not reachable, if it is
busy, if there is no reply, or if call forwarding is
allowed unconditionally.
voice mail the operator may decide to set this value by
default to the voice mail of the mobile so that
callers can leave a message.
Short Message Service (SMS)
SMS text messages may be sent by mobile
phone users to other mobile users or external
services that accept SMS. The messages are
usually sent from mobile devices via the Short
Message Service Centre using the MAP
protocol.
International Mobile Equipment Identity (IMEI). IMEI may be checked against the Equipment
Identity Register to locate stolen phones and
facilitate monitoring.
GPRS General Packet Radio Service (GPRS) is a
packet-switched data transmission protocol.
Routing The SMSC is a central routing hubs for Short
Messages. Many mobile service operators use
their SMSCs as gateways to external systems,
including the Internet, incoming SMS news
feeds, and other mobile operators
Videocon Mobile Service

9. Videocon Group announced the launch of its GSM mobile services in the country, through the group
company, Videocon Telecommunications Ltd. Videocon group company offers GSM mobile
services GSM service under the brand name Videocon.
GSM
Videocon has PAN India license for setting up GSM services. Videocon group started GSM mobile
services from March 27, 2010. The service will be available in Kerala, Punjab, Haryana, Tamilnadu and
other telecom circles in India.
The company would also roll out services in key cities across States like Punjab, Haryana, Gujarat,
Kerala, Madhya Pradesh and Mumbai.
Videocon mobile launched GSM services in India
Videocon mobile
It would roll out its services in 100 cities in the next 100 days. Videocon would also invest close to Rs
14,000 crore in Videocon Mobile Services over the next three years. It provide its services to
prominent cities like Lucknow, Meerut, Allahabad, Varanasi, Pune, Nagpur, Aurangabad, Hyderabad
and Visakhapatnam are also among the 100 cities in which Videocon would roll out services in the
next 100 days. It proposed to target 10 crore subscribers in three years.
EDGE
Videocon will launch future ready 2.75 G network with EDGE facility. They will also participate in
upcoming 3G auctions, for license in 20 areas. Videocon Mobile Services offers subscribers innovative
Value-Added Services (VAS) and superior customer service.