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MOBITEK > Products > GSM Modem |
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A GSM modem is a specialized type of modem which accepts a SIM card, and operates over a
subscription to a mobile operator, just like a mobile phone. From the mobile operator perspective, a
GSM modem looks just like a mobile phone.
GSM Modem comes in various interfaces, such as PCMCIA Type II, USB, and Serial. GSM Modem is
However the main difference is that GSM Modem is wireless, while dial-up modem is wired.
Some GSM Modems also has GPRS feature that allows tramission of data over TCP/IP (internet).
To transmit data using GSM Modem, there are various methods that can be used, such as:
- SMS
- CSD or HSCSD
- GPRS / UMTS
Even though a normal mobile phone can be used as GSM Modem, it is higly recommended that a
special industrial grade terminal to be used as a GSM Modem due to its stabilty, and reliability.
A GSM Modem can be used to built the following applications:
- SMS Gateway ie. to send and receive SMS
- telemetric ie. to collect data from remote terminals
- call-back service for VOIP
- SMS application, SMS solution, or SMS programme
- automatic reloading of pre-paid account with STK API
- machine to machine communication
- sending SMS from PC
- automating business process
- vehicle tracking with cell broadcast feature or with integrated GPS terminal
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