This month is the best production month of Cell Phone Jammers

This month is the best production month of Cell Phone Jammers .
GSM digital mobile communication system by the mobile switching subsystem (MSS) and base station subsystem (BSS) composed of two parts, shown in Figure 9. Mobile station can be mobile or car units, each MS has a unique device ID. All GSM mobile station can not work independently, be coupled with mobile operators to provide a user identification card (SIM), in order to work properly. Each SIM card has a unique user number for GSM mobile number and mobile book user ID. Book No. No. mobile users by the GSM service access numbers (139,138,130, etc.), HLR and user identification number H0H1H2H3 number ABCD form, H0H1H2H3 also be used to identify the local mobile network. Mobile user ID number by the 460 countries of China's mobile, digital mobile network public network number (for example, 00 of China Telecom, China Unicom, 01), HLR and user identification number H0H1H2H3 code form, the mobile user ID of 15 bits, a digital mobile company network number uniquely identifies the user, generally write to the SIM card. The workshop held more meetings in the production month of Cell Phone Jammers .
BSS includes the base station controller (BSC) and base station transceiver device (BTS). BSC controls a number of BTS, BSC under normal circumstances a jurisdiction as a location area. MSS, including mobile switching center (MSC), Home Subscriber Location Register (HLR), access to user location register (VLR), Authentication Center (AUC) and Equipment Identity Register (EIR) and so on. MSC is a mobile communication network service node devices. It has other features for the entity (BSS, HLR, VLR, AUC, EIR, OMC, etc.) and for the fixed network (PSTN, ISDN, PSPDN, etc.) and various interfaces. It provides switching capabilities that follow mobile users call mobile users, mobile users call fixed and mobile users to fixed users calls together with the BSC to complete the transmission link (including wireless links) and routing and connectivity. The self inspection of Cell Phone Jammers should be carried out to confirm whether there is any problem.
Moving with the local network to one or more MSC, when the number of MSC, you can specify one or two MSC to mark MSC (GMSC). Move through the local network in the MSC and GMSC PSTN, ISDN, PLMN (Public Land Mobile Network) and other public network connected. Under normal circumstances VLR and MSC-one correspondence, and impose the same physical entity being. VLR to MS scratch its jurisdiction all the user data, temporary data from the HLR and BSC, including the mobile subscriber identity, MS location area identification and business, registration, authentication and other information. Typical is the use of mobile phones while driving. Final inspection of Cell Phone Jammers  is very important.
When the MS into a MSC / VLR service area or in the boot of a business area location registration applications, accept the registration of the MS, VLR and the VLR user identification number identification number to send their attribution of HLR, VLR if it is for legitimate users from HLR to obtain ownership of their user data and temporarily stored in the VLR. When the MS is calling, the calling MS is attributable to the HLR requests the VLR is assigned a roaming call MS to send No. HLR temporary. Roaming number 13x00M1M2M3ABC, one of the x00 M1M2M3 part only determines where the called mobile MS and the respective local network MSC. MSC where the main call MS can call MS to be attributable to the HLR temporary roaming number of the called MS as the second call routing basis.