If your Ultra device displays a cross symbol on the SIM card, indicating it's not reading the external SIM card, follow these steps to troubleshoot: Check SIM Card Insertion: Ensure the SIM card is properly inserted into the device's SIM card slot. ...
If your Ultra device displays as disconnected on G-web, it may indicate that the device is either not making an internet connection to G-web or that the device is completely switched off. How to Determine if the Device is Not Making an Internet ...
Please find attached the Troubleshooting guide for GSM ULTRA devices, which includes the following sections: Ultra disconnected from G-web Screen Troubleshooting Inputs and outputs not activating No Speech at the gate station LED interface - buttons ...