CenturyLink DSL IP changing program/ script required

I have CenturyLink DSL internet line and need a program to change IP function. He who has experience with CenturyLink DSL and script programming can do the job... I have modem that can change IP by resetting it, but need something to reset modem from keyboard shortcut without open the modem. Goal - Need IP to change every few minutes. I can offer remote access via Logme In to check computer and test your script if it is working. Need this done ASAP