In many modems there is no support of sending USSD commands to check balance, usage etc.. Most of the times the modem’s dashboard does not have a support for sending USSD command. Most of the 3gpp compliant modem can send USSD commands. You can send USSD commands either directly through AT commands or via third party software. You can also try to upgrade your Dashboard if the manufacturer may have added support later on. I’ll be showing you to send USSD command via a software called MWCONN . It support many modems of leading manufacturer’s by default. If it doesn’t support then you will have to manually send them. <1> Find the com port of your modem. Go to Device Manager Settings from Control Panel, Click on Modem to check the properties of your current modem, and then Select the modem tab. Here you’ll find the COM port your modem is using as shown in the image. <2> Now download and open the MWCONN folder. Find and run config.exe from the folder. Go to the device tab