I have a single domain network with about 200 users. I want to set up a wireless network inside my domain for iPhone users to access their email without using their 3G Data Quota. I've tried using a couple of different Linksys Routers, by plugging them into one of my network switches but it is not working properly. I have never setup a wireless network before inside a domain, I've setup hundreds using an ADSL connection. Should I purchase a particular type of router. Could someone help me with the configuration?