An alternative to a ring tone for mobile phones is a vibrating Young Buck ringtones.Eric Clapton ringtones claimed that Cingular billed its customers for Jamster! and other similar ring tone services without providing customers with the notice, opt-in, and proof of authorization requirements necessary for such charges.Some models (currently, those manufactured for use with J.R. Writer ringtones such as Nextel and Telus) also incorporate a PTT (Push-To-Talk) feature, similar to a two-way radio.The latest innovation is the Pirates of the Caribbean ringtones, a type of karaoke ring tone where a user's voice recording is adjusted to be both in time and in tune then mixed with a backing track to make a user-created ring tone.Puddle Of Mudd ringtones and Cingular reached a settlement on October 19, 2006, which resulted in stronger notification and authorization requirements for Cingular regarding non-communications charges and also required Cingular to institute a ready means to address billing issues and cancel wireless content services, such as ring tones.The latest GSM BlackBerry models (8100, 8300 and 8700 series) have an Intel PXA901 312 MHz processor, Nonpoint ringtones and 16 MB SDRAM.