I have been testing now with the following phones: Nokia 6600, 3650, 7650 and Siemens SX1(Symbian)
The only phone that seems to undestand RTSP links id the Nokia 6600.
The others only supports linking via HTTP://
And when using HTTP to link to our RM files there is very long delay befores the phones starts to play the RM file.
A http link could look like this: http://mystreamserver.com:8080/ramgen/hello.rm
I use WML on all phones.
Does anyone have success with RTSP links to for example Nokia 3650 ???