Make a Mobile Website
If you are running your site on an apache web server chances are that it has cpanel and in cpanel there is a create subdomain icon/text. If this is the case go there and follow those directions. It will then create a folder on your site like so. http://www.yoursite.com/mobile/ and when users go to mobile.yoursite.com it will show the contents of the mobile folder.
Creating Subdomain for Mobile on IIS Server
Creating Subdomain on IIS Server is a little more tricky that on Apache. First you must create a folder in the inetpub called mobile. Then you need to add new website by right clicking My Computer going to Manage and then Services and Then IIS then Web Sites. Create a new website naming it Mobile Site, then make sure that the properly / Home Directory Tab is showing the contents of the mobile folder. Then go to the control panel and select network devices and right click your network connection and go to properties. Then click the advanced button and make sure the tab is on IP Settings. Add an IP address (a new one not the same one as your other site) and then save all that.
Now back to what we where talking about earlier, making a few pages specifically for the mobile device browsers You need to create at least 4 different pages
* Email Directory
* Phone Directory
* Location
* About
If your organization is not that large you can probably compress Email / Phone directory into 1 contact page.
These pages need to be minimal. Minimal text, minimal tables, minimal pictures ect. Also NO FRAMES, NO JAVASCRIPT, and NO FLASH as most mobile device browsers can’t read any of those.