“Headset” — select “On” if an external headset is connected to the Omnicomm terminal. When the parameter “Headset” is on, the field “Dispatcher number” is displayed where it is required to enter the telephone number that the outgoing call will be addressing when the GSM call button is pressed. “SMS” — switch on/off the receiving of SMS-commands and sending of information messages by the terminal (Figure 13). When the parameter “SMS” is on, the following information is displayed: “Number for sending SMS” — enter the telephone number to which SMS with terminal and VH status informa- tion will be sent. “SMS template language” — select template language for SMS. Possible options: Russian, English, Portuguese, Spanish. “VH name” — enter the VH name. Filling in the field “VH name” is mandatory.