Nokia composer >> This is what there has to come on your nokia gsm`s screen. Folow the nokia keypress to get this.
Nokia keypress >> Just type these numbers in your nokia composer window and you will get the nokia composer code on your screen.
Siemens composer >> This is what there has to come on your siemens gsm. More info about how to come, click here
Ericsson composer >> This is what there has to come on your ericsson gsm.
Nokia rtttl >> This code is for people who have a data cable. You can upload the ringtone using your pc and datacable pc to your mobile phone.