What are the disadvantages in gsm based home automation?

Answer 1

There are many benefits to GSM phone service and perhaps the best is that you can use cell phone with other provider. It is nice when using a cell phone that you can call whoever you want wherever you want and never think twice about changing mobile phone network or what frequency the phone is using. Everything just happens naturally, and that is certainly a benefit. And if you travel internationally you can still use your phone. This is where GSM comes into play and why it is so important to have a GSM cell phone.

You would get your GSM phone that is a Quad Band phone. In summary, a Quad Band mobile phone is used to designate a phone that can operate in the following GSM frequency bands:

• 850 MHz (U.S./Canada/Latin America/Brazil (Only the carrier Vivo in the south and south-east of Brazil))
• 900 MHz (Africa/Europe/Brazil/Australia/Asia (ex Japan and S. Korea))
• 1800 MHz (Africa/Europe/Brazil/Australia/Asia)
• 1900 MHz (U.S./Canada/Latin America/Brazil (Only the carrier Vivo in the north, north-east and centre-west of Brazil))

These are also called World phones. These phones come unlocked and can be used with any carrier that uses a GSM network by changing the SIM card to the phone. To view some types of these phones go to: http:/nextlevelcellular.ecrater.com

Answer 2

GSM (Global System for Mobile) is easy to access and use, portable, and has a global range. Technology also has a lower power consumption, and low operational costs in general.