Jalankan peramban (browser) web dan kunjungi situs penyedia nada dering gratis dan tepercaya. Carilah situs unduhan nada dering yang diinginkan. Pilih nada dering yang diinginkan, kemudian ketuk tombol "Download". Pindahkan nada dering ke perangkat Android. Pindahkan nada dering ke iPhone. Tetapkan nada dering yang baru sebagai default untuk perangkat seluler Anda.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
Finding a legitimate website to download free ringtones can be difficult, but sites like Tones7.com and ToneTweet.com are commonly recommended on the web.  If you’re not sure if a site is reputable, try to find online reviews first. Search for the site name and the word “review.” Ringtone download sites work for both Android and iPhone. Most free ringtone download sites work the same way—you’ll see a search box where you can enter song names/sound types and lists of ringtones by category or popu