We currently host a website that doesn't display Japanese characters properly on certain cell phones - the Japanese call them "feature phones".
The web farm is a group of several Windows 2008R2 web servers running IIS 7.5. They sit behind an F5 LTM load balancer.
The confusing part is that when the same phones connect to our public-facing test environment, the characters display properly.
The test environment is also a 2008R2 Web Server - IIS 7.5 - behind the same F5 LTM.
The web team says that the code for this application is the same on both test and production, so they're looking to me to troubleshoot the web servers.
I don't even know where to start with this as I have no experience with foreign language on a web server.
Any thoughts or direction is welcome!