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JODHPUR NATIONAL UNIVERSITY
Session 2011-12A
PRACTIAL SUMMER TRAININGON
BSNL
1.
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INTRODUCTION OF BSNL
On October 1, 2000 the Department of Telecom Operations, Government of Indiabecame a corporation and was established as Bharat Sanchar Nigam Limited
(BSNL).
BSNL is fourth largest department of telecommunication company in ASIA &seventh largest in world today.
It has latest digital switching technology like OCB, EWSD etc. for faster and
better connectivity.
2.
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BSNL provides many useful services like:
1. Basic telephone services
2. Internet broadband services
3. Cellular mobile services
4. Leased lines
5. IPTV
6. Wimax7. Wi-Fi
3.
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BASIC TELEPHONESERVICES
BSNL is the largest telecom operator in India and is known to
everybody for Basic Telephony Services for over 10 years.
Presently, Country wide telephone service is being provided through32,000 electronic exchanges, 326 Digital Trunk Automatic Exchanges(TAX), Digitalized Public Switched Telephone Network (PSTN).
All these are interlinked by over 2.4lakh km of Optical Fiber Cable,with a host of Phone Plus value additions to our valued Customers.
BSNL's telephony network expands throughout the vast expanses of
the country reaching to the remotest part of the country.
4.
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CELLULAR MOBILE SERVICES
We can use BSNL Mobile in over 160 countries worldwide and in
270 cellular networks and over 1000 cities/towns across India.
It has got coverage in all National and State Highways and train
routes. BSNL Mobile offers all India Roaming facility to both pre-
paid and post-paid customers.
It also provides 3G services, video confrensing , image transfer and
many other useful services by ISDN (Integrated service digital
network)
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CELLULAR MOBILE
SERVICE
C.D.M.A (Code division multiple access):
Cdma works on code division multiple access technique.It is also known as green phone.
G.S.M (Global system for mobile communication):
Gsm works on time division multiple access technique(tdma)& frequency division multiple access technique(fdma)
6.
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BSNL Mobile provides all the services like :
MMS
GPRS
Voice Mail
Short Message Service (SMS)
unified messaging service (send and receive e-mails) etc.
7.
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RG MTTC Presentation
Um E
Abis A
Q C
B
N H
MS
BT S BSC
PSTNM SC
M SC/SSP VLR
HLR AUCMC
D
MC
M
MSS
BSS
Ai
Architecture of Call routing through WLL system
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INTERNET BROADBAND SERVICES
BSNL launched Data One broadband service in January 2005
which shall be extended to 198 cities very shortly.
The service is being provided on existing copperinfrastructure on ADSL2 technology.
Subsequently , other services such as VPN, Multicasting,Video Conferencing, Video-on-Demand, Broadcast applicationetc will be added.
9.
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BSNL BROADBAND PROVIDE SUCH
FACILITIES LIKE:
It provides: Internet dial up access.
Leased line access.
CLI based access.
DIAS service, for web browsing.
E-mail applications.
10.
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BROADBAND: It is an ¶always on· data connection i.e. able to
support interactive services including Internet access and has the
capability of the minimum download speed of 256 kbps.
11.
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OCB-283
(Organ control bergon)OCB-283 is a digital switching system
It support a variety of communication needs like:
1. ISDN2. Basic Telephony3. Data communication4. Cellular radio
It is developed by CIT ALKATEL
It support both analog and digital subscriber
12.
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OPTICAL FIBER CABLE(OFC)
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In OFC information is transmitted
through a glass or plastic fiber in fromof light.
Information is encoded intoelectrical signals.
Electrical signal is converted intolight signals.
Light down the fiber.
Detector changes the lightsignal into electrical signals.
Electrical signals are decoded into
information.
14.
Fiber optic system
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QUERIES..?
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THANK YOUPRESENTED BY:
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