How to use a Bluetooth phone as modem in Linux
Basically several steps:
1. Kernel must support bluetooth and ppp, wvdail and bluez-utils must be installed
2. Turn on the bluetooth function in the phone
3. Use "hcitool scan" to scan for the phone, get the hardware address
4. Use "rfcomm bind xx:xx:xx:xx:xx:xx" to pair up with the phone
5. Search dailup support by "sdptool search DUN"
6. If it can be searched, put login information in /etc/wvdial.conf
7. Content of wvdial.conf
  [Modem0]
  Modem = /dev/rfcomm0
  Baud = 115200
  SetVolume = 0
  Dial Command = ATDT
  Init1 = ATZ
  Init3 = ATM0
  FlowControl = crtscts
[Dialer utms]
   Username = guest
   Password = guest
   Phone = *99***1#
   Stupid Mode = 1
   Inherits = Modem0
8. Use "wvdial utms" to connect to internet through 3G phone.
 
