Sign In/Up
My Cart (0)
All Categories

Keywords: Led Flashlights | VR Headset | Smart Phones | Sport Camera | Smart Watches | Clearance Sale

View or edit your browsing history Products I Viewed
View All Images
Facebook Twitter Pinterest LinkedIn Google
Get DinoPoint by Writing reviews, Post Images, or Post Videos. The first five customers can get double points!
Fusionsea

315MHz±0.5MHz GSM Alarm Home Security System YL-007M3

( 1 Review)
 
US $107.69
Power Adapter:
EU Adapter
AU Adapter
US Adapter
UK Adapter
Qty:
Shipping cost: Free Shipping To Shipping cost:   USD$ 0.00 To United states Via Estimate shipping fee
· Orders over USD$ 20.00 will get free tracking services via air mail

Recommended Products

Flash Deals

  • 20%  W5 Smart Bracelet Pedometer Sleep Tracker Thermometer Smart Wristband Fitness Tracker Smart watch

    W5 Smart Bracelet Pedometer Sleep T...

    0 0 0 : 0 0 : 0 0

    USD$ 10.86

    USD$ 8.69

    Free Shipping

  • 30%  DualShock 4 Wireless Controller for Sony PlayStation 4--Red

    DualShock 4 Wireless Controller for...

    0 0 0 : 0 0 : 0 0

    USD$ 52.84

    USD$ 36.99

    Free Shipping

  • 20%  H96 Pro+ TV BOX  Amlogic S912 64bit  Octa-core 3G 32G SHEET Android 6.0 OS Supports Dolby Vision

    H96 Pro+ TV BOX Amlogic S912 64bit...

    0 0 0 : 0 0 : 0 0

    USD$ 99.99

    USD$ 79.99

    Free Shipping

Product FAQs
  • What is GSM?
  • GSM (Global System for Mobile communications: originally from Groupe Spécial Mobile) is the most popular standard for mobile phones in the world. Its promoter, the GSM Association, estimates that 80% of the global mobile market uses the standard. GSM is used by over 3 billion people across more than 212 countries and territories. Its ubiquity makes international roaming very common between mobile phone operators, enabling subscribers to use their phones in many parts of the world. GSM differs from its predecessors in that both signaling and speech channels are digital, and thus is considered a second generation (2G) mobile phone system. This has also meant that data communication was easy to build into the system.

  • What are advantages of GSM?
  • The ubiquity of the GSM standard has been an advantage to both consumers (who benefit from the ability to roam and switch carriers without switching phones) and also to network operators (who can choose equipment from any of the many vendors implementing GSM). GSM also pioneered a low-cost (to the network carrier) alternative to voice calls, the short message service (SMS, also called "text messaging"), which is now supported on other mobile standards as well. Another advantage is that the standard includes one worldwide emergency telephone number, 112. This makes it easier for international travellers to connect to emergency services without knowing the local emergency number.

  • What about security of GSM?
  • GSM was designed with a moderate level of security. The system was designed to authenticate the subscriber using a pre-shared key and challenge-response. Communications between the subscriber and the base station can be encrypted. The development of UMTS introduces an optional USIM, that uses a longer authentication key to give greater security, as well as mutually authenticating the network and the user - whereas GSM only authenticates the user to the network (and not vice versa). The security model therefore offers confidentiality and authentication, but limited authorization capabilities, and no non-repudiation. GSM uses several cryptographic algorithms for security. The A5/1 and A5/2 stream ciphers are used for ensuring over-the-air voice privacy. A5/1 was developed first and is a stronger algorithm used within Europe and the United States; A5/2 is weaker and used in other countries.

Copyright DinoDirect Corporation 2017. All rights reserved. See our privacy policy, terms of use, disclaimer and takedown policy.
Sign In submit Submit Apply >> Continue Join Now Add Store To Wishlist Add a new address Back >> Continue checkout Save Cancel Remove/Change Items Add To Cart Shop Now Create Register now Open a Case Start a Live Chat View all < Create An Account Return to Sign in Send Confirmed Application Email Verification Get It GO Enter My iDinor Life! Close Join My Homepage Continue Shopping Share Rewards Accept Accept and Check >> Search Back Close the case Pay Now Cancel Submit Confirm Save Click for more info Write a Review Yes No Reply Sold Out Size Guide Color Guide No thanks Continue Upload Share Rewards Accept and Check >> Search view more Next et Transaction Code >> Confirm Remove Upload Video Upload Images >> Continue checkout Get Free Sample Write a feedback Buy Now OK Start Chat Create An Account No, thanks! Go Remind me 7 days later