http://www.nokia.com
2. Motorola
http://www.motorola.com
3. Sony Ericsson
http://www.sonyericsson.com
4. Kyocera
http://www.kyocera.com
5. Siemens
http://www.siemens.com
6. NEC
http://www.necwireless.com
7. LG Electronics
http://www.lge.com
8. Mitsubishi
http://www.mitsubishiwireless.com
9. Qualcomm
http://www.qualcomm.com