Ringtone download format for Nokia 3410?

Archived from groups: alt.cellular.nokia.ringtones (More info?)

Hi,

I have a Nokia 3410 and I would like to be able to create (mono)
ringtones for it, put them on my web site and download them to the
phone. (Yes, I'm too tight fisted to fork out for a data cable).

I've already created a tone in RTTTL format but presumably I can't
download this directly. I've heard of MMF -- would the 3410 recognise
this format?

If so, are there any free tools to convert RTTTL (or WAV) to MMF?

Thanks in advance,
Colin