BB Does Not Connect With Dial-Up
 All BlackBerry devices have the ability to act as a modem, which means you can connect your device to your computer
and share the network connection from the BlackBerry. This process is
known as tethering, and it can be configured as a dial-up service.
Setup-
Before you start troubleshooting the dial-up connection, ensure that
your BlackBerry device is properly connected to your desktop or laptop
computer. Use the USB cable that came with your Blackberry and make
sure both ends are firmly plugged in to the appropriate ports.
Configuration-
Open the "Network Connections" control panel on your computer and
double-click on the "New Connection Wizard" link. Set up a new manual
connection and select the "Connect using a dial-up modem" option.
Choose "Modem - Standard Modem" as the connection type and enter "*99#"
as the phone number. Press "Next" and "Finish" to save the
configuration.
Connection Testing-
Go back to the "Network Connections" window and double-click on the
icon for your BlackBerry device. Enter your BlackBerry username and
password and click "Dial" to initiate a new dial-up service connection
How Does a Dial Up Connection Work?-
A dial-up Internet
connection is becoming more rare due to broadband and wireless Internet
connections, but is still fairly common. A dial-up connection means
that you use your telephone line to connect to an outside Internet
Service Provider (ISP), which in turn connects you to the Internet. The parts of a dial-up connection include a modem, which transmits the signal from your computer to your phone line, and connects it to the modem at your ISP, as well as a telephone line.
How It Connects to the Internet-
In order to connect to the Internet, the user first has to give the
signal on the computer for it to connect. For instance, you usually
double-click on the server icon (e.g., Internet Explorer or Mozilla),
which initiates the dial-up process. You will hear a phone number being
dialed, and then a series of clicks and beeps as the connection is
being modulated to connect to your ISP's modem. Once it is done, it has
acquired an Internet Protocol (IP) address from the ISP, which enables
your computer to connect to the Internet network.
Pros and Cons-
Dial-up connections are the most inexpensive type of Internet
connection you can purchase, but this comes at a heavy price. Most of
all, dial-up connections can be slow, both in connecting to the
Internet and in loading Internet websites. This is because the phone
line used in dial-up connects permits only a fairly limited stream of
data from the ISP. For example, most dial-up connections allow about 56
kilobits per second while broadband permits as much as 512 kilobits per
second, which makes a world of difference in terms of the speed of your
Internet connection.
How Telephone Wiring Affects Dial-Up Internet
Dial-up Internet
service allows computer users to go online over standard copper
telephone lines. If the lines are of poor quality or have any form of
interference, the dial-up connection may work poorly or not at all.
Effect-
Poor telephone wiring, according to the Internet
reference website High Speed Internet Access Guide, can cause dial-up
connections to fail to connect or terminate an existing connection.
Less severe symptoms can include packet loss and numerous errors, and
both of these conditions can cause the dial-up service to seem
significantly slower than normal.
Function-
In a dial-up connection, the user's computer modulates data into sound
for transmission across the telephone line and demodulates incoming
sound back into data. Each time the modem sends or receives data, it
performs a quality check with the modem on the other end. If these
checks fail, possibly because of poor line quality, the modem must
resend the missing or corrupt data.
Considerations-
Though poor quality telephone wiring can cause a number of dial-up
issues, several other factors may lead to similar symptoms. According
to the Internet reference website DSL Reports, issues like trouble on
the telephone network, a faulty modem and even interference from analog
telephones on the same line can also cause latency and outages.
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