Telnet to your modem

I use BSNL's connection with what they call a Type II modem - basically a wireless enabled modem - I have a Huawei WA1003A modem which runs Linux.

To login to your modem is pretty simple you do a

telnet 192.168.1.1


Trying 192.168.1.1...
Connected to 192.168.1.1 (192.168.1.1).
Escape character is '^]'.

BusyBox on (none) login: root
Password:

Type in the password that you use to login to the web interface (you use admin as the username there).

And there! you have a terminal to your modem.

You can many commands on the terminal - To know a list of commands - type in the following on the terminal

busybox

Explore things - For example - you can see the pppd connection which is what connects you to the internet as well as the thttpd server which is a tiny webserver.

Maybe you can discover a few tricks as well :)