Here are couple of files I've coded a long time ago. All of these are tested with Nokia 9000i, 9000il and 9110. Zipped versions are below:

And the same files as aos-files:

Here are couple of wav-files to be used as ringing/alert tones in Nokia Communicator 9110. These will fit nicely into 4MB Memory Card.

And finally, here are couple of links you might want to check: