WIN-911 introduces the ability to configure several modems on a single system. WIN-911 can then use these modems to send messages at a faster rate as well as have them serve as backups of one another. For example, if two modems are configured, the WIN-911 SMS module will use both modems simultaneously to send alarm messages. If one modem fails to send an alarm, the WIN-911 SMS module would redirect the alarm to the other modem.

Getting Started


You will need to setup a wireless account with Verizon and activate the modem before you can begin using it. If you have not provided Verizon with the MEID from the back of your modem, activation will fail. WIN-911 will only use the SMS functionality of your modem so you do not need a voice or a data plan. We recommend using an unlimited texting plan.

Driver Download


Before you begin, you will need to download the driver for you modem, you can find the latest driver for the MTC-C2 modem here, Driver Download. 


Extract the files to your computer. 


Installing on Windows 7, Windows 8, Server 2008, and Server 2012

NOTE: If you connected the device before installing the drivers, Windows may install drivers automatically.

Your device may not operate correctly with these drivers. Uninstall the drivers before proceeding.


  1. Unplug the modem if connected.
  2. Go to the location where you extracted the driver and open the EV3-C2-USB\Driver folder.
  3. Right-click on TelitUSBInstaller_Qc_U8.00.04.exe and select Run as Administrator.
  4. Click Yes or Allow to allow the installer to make changes to your computer.
  5. Click Next and follow the instructions in the installation wizard.
  6. Click the Install option when prompted.
  7. Click Finish.
  8. Connect USB cable from the device to a USB port on your computer. Windows indicates when the device is ready to use.

Activating the Modem

Locate Modem COM Port

In order for WIN-911 to use your modem, you must tell it which COM port the modem was assigned to. You can locate your modem's COM in Phone and Modem Options. 


  1. Open Control Panel
  2. Select Phone and Modem Options
  3. Select the Telit Mobile Highspeed Modem and click Properties
  4. Select the Modem tab and you'll see the COM port on the top left. You need to enter this COM port in WIN-911.

Terminal Session

  1. You'll need to make a connection to the modem with a terminal program such as  PuTTY, TeraTerm, or HyperTerminal using the COM port you found in the previous step. We'll use PuTTY in this guide which you can download from here, PuTTY Download.

  2. Open PuTTY and select the Serial radio button. Enter the COM port your modem is assigned into in the Serial line field and enter 115200 for the Speed. Select Open to connect to the modem.

  3. You should now be connected to the modem and looking at a terminal window. Enter ATE1 and hit enter. You should receive an OK response.

  4. You need to verify you have a strong enough signal to activate the modem. You can do this by typing the command AT+CSQ. You will receive a response similar to +CSQ: 15,99. The first value of the response indicates the signal strength [0 - 31]. You will need a signal of 10 or more. If your signal is below 10, activation may fail.

  5.  Enter the following command to activate the modem, AT+CDV*22899; (be sure to include the semicolon). Wait for the following responses to come through...

    #OTASP: 0
    #OTASP: 1
    #OTASP: 2

  6. Once you receive NO CARRIER, power cycle the modem by unplugging the USB cable from the modem and plugging it back in.

  7. Reconnect to the modem via PuTTY (step 2).

  8. You can check to see if the registration was successful with the following command, AT+CREG? You will receive a response similar to +CREG: 0,1. You want the second value to be either a 1 or 5 which indicates registration was successful.

  9. Close PuTTY

Setting Up WIN-911

  1. Open the WIN-911 GUI and go to Contact > SMS > Gateway.

  2. Click the  button on the bottom left to add a new modem.

  3. Name: Enter a unique name for this modem.

  4. Connection Type: Select  for USB and RS-232 modems.

  5. Port: Enter the COM port you located previously in these instructions into the Port field or use the  button to browse for your modem. You will see the name of the modem next to COM port it is assigned to.


  6. Radio Type: The MTC-C2 uses a CDMA radio so you'll need to select 


  7. Initialization: The Multi-Tech modems do not require an additional initialization string so leave this field empty.

  8. If you'd like WIN-911 to respond to incoming text messages for alarm requests, alarm acknowledgements, and Report requests then leave the Enable Incoming box checked. If you would like WIN-911 to ignore incoming messages, uncheck the box.

  9. Use the  button to send a text message to yourself. WIN-911 will also check the registration status, signal quality, and bit disparity rate. If the modem is not registered, you will need to call your cellular provider to make sure your modem is activated. If your signal is below 10, then you may have intermittent sending/receiving issues.

  10. Select the  button to save your configuration.

  11. WIN-911 is now configured to use your modem!


If you have followed these steps correctly, you have installed and setup your cellular modem for use with WIN-911.

If you're having any issues with these instructions, please submit a support request or contact Product Support at 512-326-1011 x3 or toll free in the US and Canada at 1-800-331-8740 x3