Let me give you some of my inputs and would appreciate any comments and suggestions from all.I will be launching an WISP. Let me give u details of my setup.Basic Requirement for an WISP:1. A high rise building or top of a hilly area for better LOS. (in my case I acquired an office on a 11 storeyed building and built up a tower on its rooftop).2. A robust hardware for your base station snd a good data center.--> Wireless equipment with a long range (you can use 2.4 / 5.8 Ghz devices).--> Managable Switch (Cisco is recommended)--> Authentication Server--> User and Billing Server--> Power Supply System (I have one which offers 8 hours of supply)--> Media Converters.--> Networking Tools3. Bandwidth from a good gateway. (few of them even share the licenses, so that u won't need to get into those licensing issues).But i like to how to get the license for it. whether we requires license for wireless and for Isp. Please also say how to get the license and also say how to get the bandwidth from reliance or airtel.Thanks in advance.