G3GSM modem card allows the G3 operator interface products to communicate with operators via cellular technology. The expansion card is configured with Red Lion's free Crimson software and uses a SIM card. The modem card includes a built-in Web server, allows viewing of the same screens that are displayed on the G3 or viewing of data only or logged files, the ability to upload/download G3 databases without being on-site and an auto-dial function to send out alarm or event information via text message.