Hi I want to shift from my current adsl router to wifi modem provided by mtnl delhi. But first I want to know from current users that how many ethernet ports are there in wifi router provided by mtnl so that I can connect my pc and laptop at the same time?? also what is the difference between Type II and IV wifi modem as mentioned on mtnl delhi website??and how much I will have to pay initially for migrating to wifi modem??Thanks