Features of Dial up Internet
The most common way to access the Internet from home is using
a dial up connection. In this case, you need to connect with a
modem and a phone line to your
Internet Service Provider (ISP). Your computer connects
via modem to the ISP using an access number provided by your Internet
Service Provider. You will be prompted to provide a user name
and password which will be unique to your account. The provider’s
computer in turn is connected to the Internet with a high speed
link. Most ISPs have several access numbers or Points of Presence
(POPs) as they are often called.
Standard telephone line uses an analog signal to transmit audio
information from your home or office to the local telephone company.
A dial up modem modulates a digital signal from your computer
into an analog signal that can be easily transmitted over the
regular telephone network. On the ISP’s computer it gets
demodulated by special modems. This modulation and demodulation
process is the process that causes the screaming noises that you
always hear at the beginning of a dial up Internet connection.
The major limitation of a dial
up connection is its dependency on phone line. The regular
analog modems are restricted to the voice telephone network. They
only use a small portion of the available bandwidth that could
be transmitted over your phone line. The maximum amount of data
that you can receive using an ordinary modem is determined by
the quality of your phone line. The highest speed that you could
achieve is 56kbps. It is generally restricted to 40 to 45 kbps.
The presence of the ISP’s in a particular location does
vary. Some metro cities and areas with high densities of corporate
offices may have several ISPs. Here it is possible that the prices
of internet account have prices down significantly due to strong
competition. In more rural parts of the country you may only have
a few ISPs to choose from and prices will be somewhat higher.
Due to high competition, most dial up accounts provide more than
a simple connection from your computer to the Internet. They typically
also include such services as:
• An e-mail account for you to send and receive e-mail
• A personal web page (often called home page) for you
• Access to Internet newsgroups
Here it is important to note that the data in this kind of e-mail
account resides on ISP’s computer. This is because these
additional services are provided on the ISP's computers. Some
dial up accounts may also include specific features such as a
UNIX shell account.
This will enable you to receive e-mail even when your computer
is not connected to the Internet. The most important issue when
choosing an ISP is to find one with a local access number for
you to dial. Otherwise, the phone tolls may cost you more than
the ISP itself. Overall, the dial up access is a real boon for
the home internet users.
More Useful Information on
Free Dialup Connections,
Internet, Broadband, Modems..
(Asymmetric Digital Subscriber Line) FAQ's
is ADSL (Asymmetric Digital Subscriber Line)?
Transfer in Dialup Modem.
Connection Modem Issues.
Connection Speed and Throughput.
Connection and your Telephone Line..
Connection with V.92 Modem.
Effect of Additional Phone
Equipment on Dialup.
Effect of Electromagnetic
Interference on Dialup Connection.
of Dialup Connection Speed.
Evolution of Dialup Modems.
of Dialup Internet Access.
is ISDN (Integrated Services Digital Network)?
to Dialup Connection.
Issues Causing Dialup Connection Failure.
Features of a Good ISP?
Types of Hardware Modems.
and Dialup Connection Speed.
Rate Dialup Connection Fraud.
Access Numbers Dialup Scam.
up the Initial Connection Process.
To Check if your Modem does not Dial.
Steps to Troubleshoot Slow
Dialup Connection Speed.
Understanding the High Speed
Understanding Internet Connection
the Working of a Modem.
Modem Technology FAQ.