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I want to use a local Fax broadcasting service. I'd like to
know who is providing such a service in India.
One application of Voice over IP (VoIP) is Fax over IP.
We can expect many Fax broadcasting services once Internet
Telephony is legalized here in April 2002.
Meanwhile you can check out the following websites for more
information. We are not recommending any fax services and
you should explore the options.
I have been assigned the responsibility of preparing a report
on the hardware and software requirements for a proposed leased
line set up in our college.
In this regard I have the following queries:
1. How many users can work on a 64 Kbps line and 128 Kbps
line (PII and PIII machines with 64 MB RAM, working on Windows
2. What type of modem, routers and other things are required?
Can you suggest some brand names.
Institute of Management Studies and Research
You can obtain a leased line from telecom service providers
in the country. The tariffs (and other requisites) are mentioned
on their respective websites.
Type of machine connected to a leased line does not really
affect bandwidth. Of course, the more nodes (connected PCs),
the slower the access. But bandwidth can be regulated using
equipment like routers and switches. In addition you will
need to install equipment like CSU/DSU units (leased line
Exact infrastructural requirements varies, depending on the
extent of your network. But you can engage the services of
a telecom consultant who will draw up a blueprint for the
proposed leased line network.
For more information look up the following websites:
We are grateful for your solution on networking and file sharing.
We followed your instructions, and now things work fine. We
have another query.
We wish to go in for an ISDN set up and use our regular phone
line for this purpose. Can you advise us on the infrastructural
requirements (hardware and software) for ISDN?
Rahul Pandey, Amit Shahi, Vivek Singh
Institute of Engineering & Technology, Jaunpur
Dear Rahul Pandey,
A detailed answer to your query is beyond the scope of this
column, and would merit a whole article. However, we might
consider a case study on ISDN in future.
You can look up the following websites for such information.
I had gone through the article 'Switching your data,' in Network
Magazine, November 2001. I am still unclear about the term
'Segment' that you've used. To quote, "The main job of
the Ethernet switch is to divide networks into segments and
provide each segment with dedicated bandwidth."
Aawaneesh Kumar Singh
Aawaneesh Kumar Singh,
Bandwidth decreases as more users, nodes and services
are added to the network. The way round this problem is to
divide the network into smaller sub-networks (subnets) and
allocate dedicated bandwidth to each subnet. These subnets
are also called Segments or Domains. You can divide a large
network into segments/domains/subnets by deploying switching
You'll find another article on Switches at:
HAPPENING WITH 3G?
We are all aware that not much progress has been made in the
area of 3G technology here in India.
As things stand, this technology is still in the development
phase and implementation is some time away.
I seek exhaustive material on 3G technology R&D efforts
in India. We need information and news about policy issues,
operator's views, technical issues competitor's activities,
planning of 3G infrastructure. Also, what kind of effort and
role will our country play in the global markets (with 3G
Do suggest some books or website links related to 3G technology
development in our country.
The information you seek can be drawn from various resources:
websites, daily newspapers, technical magazines, etc. Look
for clues using a search engine. Then look up the archives
of leading newspapers (online or in their respective libraries).
You can also browse through back issues of technical magazines
on Communications technology.
You might also want to check what the wireless service providers
are working on. BPL Mobile Communications and Motorola for
instance, are developing a GPRS network in India. The Indian
subsidiary of Texas Instruments has set up a 3G center in
Bangalore. Earlier this year wireless solutions providers
demonstrated 3G applications at the '3G Tour Transcontinental-ON
AIR Show' in New Delhi.
Here are a few websites to get you started: