Check the below post or access http://rumkin.com/tools/sprint/ driectly to upload and download to your 027 phone your own content. Untested but should work fine as "telecom" phones are just rebadged sprint phones anyway.
Now if you were on Vodafone, i would just send you to http://wwwap.orcon.net.nz to download some nice easy MIDI ringtones. Saving an image from a wap site is as simple as going into the browser options menu and pressing "save items"
Sadly on 027, it's not so easy. Your mobiles have been restricted by Telecom to disallow the use of "free" content sites.
You need to have access to a webserver and be able to modify it's filetype descriptors.
the mobile will collect a file known as a .GCD which is like a .JAD decriptor file for a .JAR java game.
ithe GCD file simply tells the phone that the file is a MIDI and ringtone and where to collect if from.
the server descriptor file is something like.
AddType text/x-pcs-gcd .gcd
But it will probably be different for the Telecom mobiles.
Here's how it works....
The phone is instructed to go to
for example to get the ringtone.
the phone collects that file and follows the file instructions contained
Content-Name: Scribe NZ HipHop
and duly collects the ringtone from:
And Voila. A ringtone on the phone.
if you try and set the phone to "get it" by typing it in you can listen but not keep. (preview mode)
(the above site won't work as that server does not know what to do with a "GCD" file)
good luck to anyone who managed to get it to work I had no luck. (You may not use this info for commercial reasons)