USB to RS232 converter Another, slightly less reliable, way to use a serial GSM modem on a server that has no serial port is with a USB to RS232 converter. Diafaan SMS Server can use GSM modems over a TCP/IP connection directly, without the need for any additional COM port drivers. Siemens tc35i GSM modem Serial GSM modem over TCP/IP A very reliable way to use a serial GSM modem on a server that has no serial port is with a TCP/IP to RS232 convertor.Īn extra advantage is that the actual GSM modems can be placed anywhere in the network, even on remote locations.
Sierra Wireless AirLink Fastrack Xtend.Wavecom Fastrack Supreme/M1306B/M1206, MOD2.Serial ports are often not available on new computers Brands and models.External antenna, suitable for server rooms.Industrial design, usually very robust.Connector can be fixed securely to the serial port.The amount of SMS message that can be sent and/or received is limited to 12-30 messages per minute, depending on the GSM modem and network, and it is not possible to send SMS messages with alternative numeric or alphanumeric sender id’s.
However for GSM modem software they often are interchangeable.Ī GSM modem provides the SMS software with a secure gateway to the GSM network, with only two limitations. The terms SIM box, GSM gateway or GSM router are mostly used for devices that route phone calls through the GSM network and the term GSM modem or 3G modem for devices specialized in wireless data transmission. Colorthink pro 3 0 3 serial ports linux distributions. Choose a GSM Modem GSM Modems A GSM modem, 3G modem or SIM box is basically a GSM phone without keyboard, speaker, battery and display.
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