What is a "Gsm Fans"? The Most Authoritative Explanation.
What is a GSM phone?
GSM (pronounced gee-ess-em) is the most popular cell phone standard, and is used internationally, so you've probably heard about it in the context of GSM phones and GSM networks, especially when compared to CDMA. GSM originally stood for Groupe Spécial Mobile but now means Global System for Mobile communications.What frequencies does GSM work on?
The GSM standard works on three multiple carrier frequencies: the 900 MHz band, which was utilized by the initial GSM system. The 1800 MHz band, which was inserted to provide the multiple subscribers and the 1900 MHz frequency, is used generally in the U.S.What is GSM (Groupe Spécial Mobile)?
The concept of GSM emerged from a cell-based radio system being developed in Bell Laboratories in the 1970s. In 1982, the European Conference of Postal and Telecommunications Administrations (CEPT) set up a “Groupe Spécial Mobile” (GSM) committee to widen the standards of the existing analog network system.When was GSM first used?
GSM didn't begin being used commercially until 1991, where it was built using TDMA technology. GSM provides standard features like phone call encryption, data networking, caller ID, call forwarding, call waiting, SMS, and conferencing.Related Articles
You must know some knowledge about cell phone jammer.What is B5 (850 MHz)?
What are the cell phone frequencies in the US?
What are the cell phone frequencies in the CANADA?
Jammers: informatie voor opsporingsdiensten
How To Make A Cell Phone Jammer Using A Transistor?
How does Cell Phone Jammer Work?
How does a signal jammer work?
Cell Phone Signal Jammers: Use, Manufacture, Sales & Laws
4 Best Signal Jammer on Jammers.store