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Ubuntu includes some useful utilities to get your dial-up connection up and running.Here is the following ways you can connect to your dialup connection
1)Using your networking option in Ubuntu
2)using gnome-ppp
3)using kppp (For Kubuntu)
4)using wvdialconf & wvdial
5)using pppconfig & pon/poff
first thing you need to make sure your modem drivers are installed or not.If you want more details about modem drivers in ubuntu and installation check here
Now we will see 3 ways how to configure dialup connection in ubuntu
Before Starting
Before configuring Dial-up connection you need to have the following information from your ISP
1)Username
2)Password
3)Dail-in number
Configuring a Dial-Up Connection using Networking option
you can go to System—>Administration —>Networking
Once it open the application you should see the following screen
In the above screen select modem connection option and click on properties you should see the following screen
The first thing you will need to do is to enable the connection by ticking the Enable this connection box,now you need enter your ISP’s phone number as well as your username and password
Next, click on the modem tab to specify details about your modem and also configure the speaker volume. Most telephone systems use tone dialling nowadays, so make sure this is selected . I have selected the speaker volume on medium.
Now you need to click on options tab If you are using a laptop, then you will probably want to uncheck Set modem as default route to the Internet whilst you are on a LAN, otherwise you may struggle to see anything! Tick it when you are expecting to use your dial-up connection though, and Ubuntu will use this connection to get out onto the Internet.You need to select other two options checked.
Now You can use the Gnome Modem Monitor and Network Monitor panel if you want to stop, start and monitor modem connections.
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