I finally got my phone working as a modem and fax working with thehelp from kyocera. I can also use the included browser on the phone too. The tech e-mailed me the directions on how to make it work with win 2000. I dont know about any other operating systems but this procedure worked on my toshiba lap top satellite pro 4600 runningwin 2000. I hope this may help with any problems in a small way. Good luck. You must also have the included disk for the 7135 to get the driver you need. I have used my phone in the cradle and with the usb connection cabls.
Thank you for contacting Kyocera Wireless. I understand that during installatio
n of the modem your Windows 2000 computer requests the file ccport.sys.
This issue is caused by Windows 2000 attempting to use the Windows 9x
driver. Please follow these steps to install the Windows 2000 driver.
1) Cancel the wizard
2) Right click on My Computer and select Properties
3) Click on the Hardware tab
4) Click on the Device Manager button
5) Locate the modem. It may be listed under modem or may be listed as
an Unknown Device or Other device. It will have either a red x or a yellow
exclamation mark on it.
6) Double click on the modem
7) Click on the Driver tab

Click on the Update Driver button
9) Walk through the wizard ensuring that the CDROM drive is checked
10) When the wizard reports that it found a suitable driver, check the
checkmark to display all the drivers that it found
11) Two different drivers will be listed from the CDROM. Click on the
one that has W2K or 2000 in the path name and click OK or Continue
12) Complete the Wizard
13) You computer will now be using the Windows 2000 driver for the modem
If your issue is still unresolved, do not hesitate to contact us again.
For any future issues, please visit:
http://support.kyocera-wireless.com/
to get instant graphical answers to your questions.
Kind Regards,
Dick
Kyocera Technical Support
Support@Kyocera-wireless.com