Modem in Brazil

This is actually deprecated. If you have an Android phone you just turn on the wireless access point, and at the same time turn on the 3G. Then it becomes essentially a wireless router. The speed could be imressive if you get an HSDPA signal.

Anyway, here below is the old-fashioned way:

Contents of /etc/wvdial.conf are below. To connect e.g by www.vivo.com.br, say: wvdial vivo

[Dialer Defaults]
Modem = /dev/rfcomm0
DialCommand = ATDT
Check Def Route = on
Stupid mode = on
Auto Reconnect = on
Auto DNS = on
ISDN = 0
 
[Dialer vivo]
Baud = 921600
Username = vivo
Password = vivo
Phone = *99#
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Init5 = AT+CGDCONT=1,"IP","zap.vivo.com.br","",0,0
 
[Dialer claro]
Init2 = ATZ
Init3 = ATE0V1&D2&C1S0=0+IFC=2,2
Init5 = AT+CGDCONT=1,"IP","claro.com.br";
Baud = 460800
Phone = *99#
Username = claro
Password = claro
 
[Dialer tim]
Init2 = ATZ
Init3 = ATE0V1&D2&C1S0=0+IFC=2,2
Init5 = AT+CGDCONT=1,"IP","tim.br";
Baud = 460800
Phone = *99#
Username = tim
Password = tim
Notes:
  • This is free

  • This assumes that the COM1 of bluetooth cell phone sits on /dev/rfcomm0

  • It seems that *99# corresponds to 3G connection, while *99***1# corresponds to the old EDGE

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