Overview of Telecom Services

Agenda

1.0 Introduction

2.0 Landline Value Added Services

3.0 Intelligent Network Services

4.0 Multiplay

5.0 Audio Conferencing

6.0 Video Conferencing

7.0 Short Message Service

8.0 Online Billing Enquiry and Payment

9.0 Centrex Service

10.0 Answering Machine Service

11.0 12555 Service

12.0 GSM

13.0 NGN

14.0 Wi-MAX

15.0 CDMA

16.0 3G

Introduction

BSNL is the largest telecom Service Provider for Basic

Telephony services through its local and TAX exchanges.

Main services offered by BSNL are speech, data , audio

and video and internet services through PSTN, ISDN,

Dialup Internet, Broadband, Intelligent Network (IN),

Mobile Networks etc.,

Supplementary services offered by PSTN includes:

Abbreviated Dialing, Call Waiting, Hot line, Call Transfer

, Automatic wake-up reminder, Calling Line Identification,

etc.,

Services offered By ISDN

Main services offered by ISDN includes:Normal Telephone and FAX

Digital Telephony

Data Transmission and

Video services

Supplementary Services Supported by ISDN includes:

CLIP

Multiple Subscriber Numbers

Call waiting

Call Hold etc.,

Value Added Services

Landline Value Added Services (VAS):These include:

-Internet Facility. It is provided through out the country (except Delhi and Mumbai). BSNL provides the following types of internet connections for internet access:- PSTN dial up access- ISDN dial up access- Account free Internet Dial up access based on CLI- Broadband Connection

This is always on high speed internet service provided on the telephone connection

Intelligent Network Services

The IN services includes:

Free Phone Services (FPH)

Virtual Card Calling Services

Account Card Calling Service

Virtual Private Network (VPN) services

Premium Rate Services

Universal Access Number/Personal Number Access

service

Televoting Service (VOT)

Fixed Line Pre Paid (FLPP) services

Multi-Play Service

Multiplay service allows the customer to have Data,

Video and

Voice service on the same line.

The video service can be IPTV (broadcast) and video on demand

Audio Conferencing

Audio Conferencing service allows multiple participants toconverse with each other regardless of their location through thenormal fixed line telephone or cellular phone.

An audio conference subscriber can add two or more participantsin a particular conference.

The service is available to existing BSNL subscribers only.

Conference can be scheduled one time or standing. A standingconference is always on. The authorized participants have just todial in a particular telephone number followed by a password toenter into a conference.

On demand conference can be made. The chairperson can inviteseveral users one by one in the conference without using theweb.

Video Conferencing

Video Conferencing service allows multiple participantsto converse with each other regardless of their locationthrough the video end-points or Personal computers. Itinvolves Video and Audio communication.

A video conference subscriber can add two or morevideo participants in a particular conference. Thecustomers can schedule their video conferences throughthe Web.

The video conferencing service can be availed by anyuser through IP or ISDN interface.

The service is available to existing BSNL subscribersonly..

Short Message Service

SMS can be send and received throughlandline telephones. For this the subscriberwill have to purchase a SMS enabled handset.

Online Billing Enquiry and payment

Online billing enquiry and payment service ismade available by BSNL for many cities whereone can see the status of telephone bills aswell as pay the bills online.

Centrex Service

Centrex is a communication service which integrates a

subscriber’s all multi located Telephone lines (Existing

and New) into a single highly functional communication

group with more distinctive features without any

additional equipment (like EPABX) at the subscriber’s

premises.

A group of subscriber or a subscriber having two or

more telephone connections can avail this service in

which a centrex group will be formed.

Centrex Service

All the calls made between the members of the group

will be free of charge and are made by using a short

code consist of last 2- 5 digits (maxi.) of their number.

But all the calls made outside the group will be charged

at the normal applicable tariff.

In a way centrex facility is like having a PBX like facility

between the numbers which are geographically distant

away in a city without owning a PBX and maintaining it.

Answering Machine Service:

On the landline numbers answering machine service can be provided by the centralized equipment installed at the exchange.

The subscriber can divert his/her calls to answering machine in case of no reply or busy to record some messages and later on he/she can take the messages from the answering machine.

Answering Machine Service

On the landline numbers answering machine service can

be provided by the centralized equipment installed at the

exchange.

The subscriber can divert his/her calls to answering

machine in case of no reply or busy to record some

messages and later on he/she can take the messages

from the answering machine.

12555 Service

On landline numbers by dialing 12555 the subscribers can have many types of services like:Latest Bollywood songsOld classic songsJokesHoroscopeInternational/National newsCricket newsDifferent contestsFinance/stocks related newsTravel information etc

Different services can be added /deleted from time to time as per the agreement with the third party content provider.

GSM services

• GSM services includes:

Teleservices (TS): Telephony, emergency calls,

voice messaging

Bearer services (BS): SMS and cell broadcast,

9.6kbit/s

Supplementary Services (SS)

Supplementary Service provided by GSM

Barring outgoing call, International calls, roaming callsCall forwarding under various conditionsCall holdCall waitingCall transfer to a third partyCompletion of calls to busy subscribers – notify the caller when thecallee is freeClosed user group ---- only among themselvesCaller ID and restrictionsFree phone service (just like 800 numbers)Malicious call identificationThree-party conference calls

NGN & its Services

NGN is a packet-based network where the packet switching

and transport elements (e.g., routers, switches, and gateways)are logically and physically separated from the service/callcontrol intelligence.

NGN supports all types of services including everything

from basic voice telephony services to data, video,

multimedia, advanced broadband, and management

applications.

Several important service in an NGN

environment are:

Ubiquitous, real-time, multi-media communications

More “personal intelligence” distributed throughout the network

More “network intelligence” distributed throughout the network

More simplicity for users

Wi-MAX

Wi-MAX is a broadband wireless access service,popularly known as Worldwide Interoperability forMicro Wave Access.

WiMAX offers a point-to-point range of 30 miles (50km) with a throughput of 72 Mbps.

It offers services in non-line-of-sight (NLOS) and Line-of-sight (LOS) mode.

Wi-MAX Services

Broadband Internet Access

Personal (Mobile) Broadband

VoIP

Security and video Surveillance

Video streaming

Hotspots or Wi-Fi Backhaul

Lease line services

Internet Gaming

Virtual Private Network (VPN)

E-education etc.

CDMA

It is Code Division Multiple Access, a

digital cellular technology that uses spread-

spectrum techniques. Unlike competing

systems, such as GSM, that use TDMA, CDMA

does not assign a specific frequency to each

user. Instead, every channel uses the full

available spectrum.

Services in CDMA

Voice

SMS

Data

Audio

Video

Internet Access

Internet Gaming

Virtual Private Network (VPN)

E-education etc.

3G

3G or 3rd generation mobiletelecommunications, is a generation ofstandards for mobile phones and mobiletelecommunication services.

Applications of 3G

Some of the applications of 3G are:

Mobile TV

Video on demand

Video conferencing

Tele-medicine

Location-based services