How to install Venus VT-12 CDMA USB modem in CentOS Linux

Venus VT-12 CDMA USB is probably the cheapest CDMA USB modem. Below the technical specifications:
[*] CDMA 20001x RTT
[*] 800 Mhz, support Flexi, FREN, StarOne & Esia.
[*] R-UIM Card
[*] Sensitifity: -104 dBm (FER <= 0,5%) dan (-25dBm FER [*] USB 2.0 compatible with USB 1.0 [*] Uplink & downlink speed 153.6 Kbps Steps to install: [*] Login to your box via SSH as root [*] Put the Venus VT-12 CDMA USB modem to any free USB port. [*] Check if CentOS recognize the modem. tail /var/log/messages

[*] You’ll see something like these:
Mar 8 10:24:09 centos1 kernel: usb 2-1: new full speed USB device using uhci_hcd and address 5
Mar 8 10:24:09 centos1 kernel: usb 2-1: configuration #1 chosen from 1 choice
Mar 8 10:24:09 centos1 kernel: option 2-1:1.0: GSM modem (1-port) converter detected
Mar 8 10:24:09 centos1 kernel: usb 2-1: GSM modem (1-port) converter now attached to ttyUSB0
Mar 8 10:24:09 centos1 kernel: option 2-1:1.1: GSM modem (1-port) converter detected
Mar 8 10:24:09 centos1 kernel: usb 2-1: GSM modem (1-port) converter now attached to ttyUSB1

Means CentOS recognized the modem.

[*] Create the modem configuration in /etc/wvdial.conf
wvdialconf /etc/wvdial.conf

You’ll see something like these:
Scanning your serial ports for a modem.

ttyS0<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyS0<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 115200 baud
ttyS0<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.
ttyS1<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyS1<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 115200 baud
ttyS1<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.
Port Scan<*1>: S2 S3
WvModem<*1>: Cannot get information for serial port.
ttyUSB0<*1>: ATQ0 V1 E1 -- OK
ttyUSB0<*1>: ATQ0 V1 E1 Z -- OK
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 -- OK
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 &C1 -- OK
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 &C1 &D2 -- OK
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 -- OK
ttyUSB0<*1>: Modem Identifier: ATI -- ERROR
ttyUSB0<*1>: Speed 4800: AT -- OK
ttyUSB0<*1>: Speed 9600: AT -- OK
ttyUSB0<*1>: Speed 19200: AT -- OK
ttyUSB0<*1>: Speed 38400: AT -- OK
ttyUSB0<*1>: Speed 57600: AT -- OK
ttyUSB0<*1>: Speed 115200: AT -- OK
ttyUSB0<*1>: Speed 230400: AT -- OK
ttyUSB0<*1>: Speed 460800: AT -- OK
ttyUSB0<*1>: Max speed is 460800; that should be safe.
ttyUSB0<*1>: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 -- OK
WvModem<*1>: Cannot get information for serial port.
ttyUSB1<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyUSB1<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 115200 baud
ttyUSB1<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.

Found a modem on /dev/ttyUSB0.
Modem configuration written to /etc/wvdial.conf.
ttyUSB0: Speed 460800; init "ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0"

[*] Done.

[/list]

Good luck!

[b]Update: [/b]
To use these modem with TelkomFlexi FlexiNet Unlimited see the following:
How to configure Venus VT-12 CDMA USB modem with TelkomFlexi

Tagged with 
About sepedatua
I am nothing special, of this I am sure. I am a common man with common thoughts and I’ve led a common life. There are no monuments dedicated to me and my name will soon be forgotten, but I’ve loved another with all my heart and soul, and to me, this has always been enough.

One thought on “How to install Venus VT-12 CDMA USB modem in CentOS Linux

  1. […] you haven’t installed the modem, see this link before proceed with the following […]