Bluetooth dial-up connection via Nokia 6120 classic & T-Mobile

Very useful article in Slovak: http://stargate.cnl.tuke.sk/~mirek/homepage/pripojte-sa-do-internetu-z-mobilnej-siete-o2-cez-linux.

I am using T-Mobile, so there is one change needed - APN is "internet" instead of "o2internet". Be also careful about pasting special double-quotes (upper and lower) - it won't work, e. g. when pasting to vim. Use only regular UPPER double quotes!

Whole, but simplified, process, is:

1. Get Bluetooth MAC adress of the phone. 00:1D:6E:67:44:F2 in my case:
   hcitool scan
   
   
2. Get channel number. 4 in my case (replace my MAC address 00:1D:6E:67:44:F2 with yours, as you've got in step one):
   sdptool browse 00:1D:6E:67:44:F2
   
   
3. Write MAC address and channel number into /etc/bluetooth/rfcomm.conf:
   rfcomm0 {
# Automatically bind the device at startup
bind yes;
# Bluetooth address of the device
device 00:1D:6E:67:44:F2;
# RFCOMM channel for the connection
channel 4;
# Description of the connection
comment "Ostry's Nokia 6120 classic";
}
   Again, replace my MAC address (00:1D:6E:67:44:F2) and my channel number (4) with yours.
   
   
4. Restart bluetooth:
   sudo /etc/init.d/bluetooth restart

   
5. Make sure, that /etc/wvdial.conf contains following lines:
   [Dialer Defaults]
Phone = *99#
Username = ''
Password = ''
New PPPD = yes
Init3 = AT+CGDCONT=1,"IP","internet"
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Modem Type = Modem
ISDN = 0
Init1 = ATZ
Modem = /dev/rfcomm0
Baud = 115200
   
   
6. Connect to the service:
   sudo wvdial
   

I tested it successfully using bluetooth module integrated in my HP EliteBook 8530p.

Open question: is it possible to increase baud rate in this type of connection?