3 years Ago
Remote communications problem with SOFREL s500 equipped with GPRS upgraded from GSM
Hello, when my PC was replaced, it came with a USB-powered external modem (previously the modem had been internal). Ever since, I have been unable to communicate with the remote stations that use a GPRS/GSM SIM card. Communication with PSTN and just GSM devices poses no problem. Has someone had to d...