Unable to connect Huawei E173 usb modem

["Alfredo C. Harvey" <mackissack gmail com>]

Hello, list.
Some day ago I posted this issue.
Would deeply appreciate some guidance -a lot of it.

Huawei E173 USB módem for mobile broad band connection.
Fedora 15 Linux.
usb_modeswitch 1.1.7 -came with the system; yum say it is up to date.

lsusb says IDs are: Vendor 12d1, Product 1c24 before switching, 1c23 after doing so.
Switching works. At plugging in, led is green; after some seconds it turns blue.

Network Manager detects the modem.
It shows the "Mobile Broadband" option and the "Predetermined Movistar" connection.
However, when clicked, it tries to connect but does not.

Modem works.
I connected through wvdial.
This was the connection configuration used:
[Dialer Defaults]
Modem Type = Analog Modem
Modem = /dev/ttyUSB2
Init1 = ATZ
Init2 = ATQ0 V1 E1
ISDN = 0
Phone = *99#
Username = movistar
Password = movistar
Baud = 9600

This was the output:
-bash-4.2# wvdial
--> WvDial: Internet dialer version 1.61
--> Initializing modem.
--> Sending: ATZ
ATZ
OK
--> Sending: ATQ0 V1 E1
ATQ0 V1 E1
OK
--> Modem initialized.
--> Sending: ATDT*99#
--> Waiting for carrier.
ATDT*99#
CONNECT
--> Carrier detected. Waiting for prompt.
--> Don't know what to do! Starting pppd and hoping for the best.
--> Starting pppd at Wed Oct 19 23:48:13 2011
--> Pid of pppd: 6174
--> Using interface ppp0
--> pppd: �J�[08]�J�[08]
--> pppd: �J�[08]�J�[08]
--> pppd: �J�[08]�J�[08]
--> pppd: �J�[08]�J�[08]
--> pppd: �J�[08]�J�[08]
--> pppd: �J�[08]�J�[08]
--> local IP address 10.77.86.214
--> pppd: �J�[08]�J�[08]
--> remote IP address 10.64.64.64
--> pppd: �J�[08]�J�[08]
--> primary DNS address 200.76.88.11
--> pppd: �J�[08]�J�[08]
--> secondary DNS address 200.76.80.11
--> pppd: �J�[08]�J�[08] #here led in modem lighted up
^CCaught signal 2: Attempting to exit gracefully...
--> Terminating on signal 15
--> pppd: �J�[08]�J�[08]

LED in mode was bright blue while connecting; then it steadily stayed light blue.
I didn't know how to use the connection.
Firefox said it was out of connection, aswell as Evolution.
However, I could ping from a 2nd terminal.

Just for information purposes, the following.
/etc/usb_modeswitch.d/12d1:1c24 is the configuration file
################################################## ######
# Huawei E173

DefaultVendor= 0x12d1
DefaultProduct=0x1c23

TargetVendor= 0x12d1
TargetProduct= 0x1c23

CheckSuccess=16

MessageContent="5553424300000000000000000000001106 0000000000000000000000000000"

/lib/udev/rules.d/40-usb_modeswitch.rules has the following rule
# Huawei E173 (product 1c24)
ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1c24", RUN
+="usb_modeswitch '%b/%k'"

As there are 4 ttyUSB* ports created after usb_modeswitching this forum suggested to create another rule. So
/etc/udev/rules.d/50-myrules.rules has this rule
KERNEL=="ttyUSB2", RUN+="/bin/ln -sf /dev/ttyUSB2 /dev/ttyUSB0"

This is the whole thread at fedoraforum.

Well, as you see, I have searched and studied a lot.
But here is where I'm stuck now.

And my client, a friend of mine, is starting to hate me.

Best regards
Alfredo C. Harvey