I work for a phone company in Bristol, we primarily supply music to mobile networks around the world. We make over 80 different files for some networks for their realtones, but we are looking to change our SIS partner.
If you can make SIS files, please contact me as we will be able to push some very exciting music projects your way involving some major major record artists.
We can create the 3gp's from our end, but don't have the 'wrapper' capability as yet, we still outsource this.
Send me an e-mail to firstname.lastname@example.org if you think you can help!