Global System for Mobile Communication (GSM) modem is really a specialized form of modem that operates over paid subscription bases to a wireless network, exactly just like a mobile phone. It accepts a Subscriber Identity Module (SIM) and actually performs like a cell phone for computers. This kind of modem may be used as a separate cell phone that the computer can use for GSM network capabilities. Traditional modem is attached to computers allowing dial-up connection to other remote computer systems. In addition it functions in a quite similar manner, having an exception that it sends and receives data through radio waves as opposed to a telephone wire. This type is an external device connected with a USB (Universal Serial Bus) cable or a serial cable. Commonly it is really a mini device which can be plugged directly into the USB port or card slot of a PC or perhaps a laptop.
It is just a communication device like its ancestors having wires, but whilst the service is on paid subscription bases, it should have installed a SIM card. This card can connect the modem to the appropriate service provider and identifies the device user to its carrier network. This way, it functions almost like a cell phone; as a matter of fact, many cell phones take advantage of SIM cards for the said purpose. The SIM cards actually contain all the consumer data like subscription, membership and caller’s logs etc. these SIM cards are usually inter-changeable among GSM modems and GSM cell phones. Similarly dial-up modem converts analog signals to digital and vice versa, GSM modems convert digital data to SMS (Short Message Service) message for sending or receiving message on the wireless phone network. SMS messages are small packets of electric data which will be sent and received exactly like the data packets on dial-up modem.
GSM Cellular Modem
Several new brands of third-generation (3G) and fourth-generation (4G) expensive smart phones are employing GSM technology so that they may work as wireless hotspot for computer when required. They could easily get in touch to the computer via USB cable as well as without a wire over a wide-fidelity (Wi-Fi) network and also via Bluetooth. This enables user to get into the Online sites utilizing their cell phone working as a GSM modem instead of a traditional Wi-Fi connection. All the users who have an unlimited data package on the smartphone, this can be a cheaper solution than paying extra for another Access to the internet, or paying money as a connection fee or a membership for a public Wi-Fi hotspot.