GSM is the world's most popular standard for mobile telephony systems. GSM modem connect your computer to that. Allow computer to make cellphone call. And required sim.
A GSM Modem is a modem that operates over a subscription like a mobile phone. One can purchase a GSM Modem from eBay, Walmart, Amazon, and Robot Shop.
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it is connected with vsystem for communication
A wireless modem can be made with a GSM Sim card and a compatible cell phone. The GSM signal is made available to the surrounding area by transmitting an 802.11G/N signal.
Plz try to give as soon as possible
Connect your cellphone to the computer and make a dial-up connection to the Internet.
This is a GSM modem as comes with a SIM slot. Download speed : 21.1 Mbps Upload speed : 5.76 Mbps Added features , voice + video call Has in built GPS option (not tested yet) Works good with 2G network as well
using a programmed microcontroller, modem and other components like RS232, ATcommandes etc you can do it.
you can unlock most of the Huawei modem to all GSM network from any vendors online like unlock-zone.com
—This system is developed for only one consumer. If the consumer are more, the electricity board also should have a separate GSM modem with PC interface to receive various SMS and store all the details in system database. —Special software can be developed to monitor all bill payments and to disconnect the electricity for default consumers.
You should have no problem using the BSNL modem with any Sure BSNL modem ( likely to be ZTE manufacturing) may be used with any other broadband connection and the same is applicable for other companies too.