worldsim international sim card

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Basic knowledge of SIM card application skills

SIM Card (Subscriber identity Module), that is, the user identification card, it is a GSM compliant "smart card", SIM card size, large size 54mmx84mm (about the size of the business card

Android native number and SIM card status acquisition

The data stored by the SIM card can be divided into four categories:the first class is fixed-storage data. This data is written by the SIM card center before the mobile phone is sold, including the International Mobile Subscriber Identification Number (IMSI), authentication

Basic SIM card knowledge

classified into the following four types: (1) original system data stored by the SIM card manufacturer.(2) network parameters and user data injected when cards are issued to users by the GSM network operation department or other business departments. Including:* Authentication and encryption information KI (KCAlgorithmOne of the input parameters: Key number );* Inter

is Huawei P7 phone a dual sim card?

the SIM card slot replacement for microSD card slot use. The following network support for each version Telecom Edition (supporting dual SIM): Network mode: Main card: Telecom 4G (Tdd-lte, Need to use telecom 4G card)

Telephonymanager: Android phone and SIM card status acquisition

the SIM card.* The status of the SIM card must be Sim_state_ready (usinggetsimstate() judgment).*/tm.getsimoperator ();String/** Service Provider Name:* For example: China Mobile, Unicom* The status of the SIM card must be Sim_st

Android gets SIM card carrier Information

* Unique SIM card ID: imsi International Mobile User identification code (imsi: International Mobile Subscriber identification number) is the identifier for distinguishing mobile users,* It is stored in the SIM card and can be use

Telephonymanager Category: Acquisition of Android phone and SIM card status

/** Name of service provider:* For example: China Mobile, Unicom* The status of the SIM card must be Sim_state_ready (use Getsimstate () to determine).*/tm.getsimoperatorname ();//string/** Serial number of SIM card:* Requires permission: read_phone_state*/Tm.getsimserialnumber ();//string/** Status information of

How Android obtains SIM card information

Android Get SIM card operator informationTelephonymanager TM = (Telephonymanager) context.getsystemservice (Context.telephony_service); Telephonymanager uses Telephonymanager to provide access to information about the communication service on the device, and the application uses this class of methods to obtain a service provider or status for the phone. The program can also register a listener to monitor ph

Android Get SIM card operator information (GO)

Telephonymanager TM = (Telephonymanager) context.getsystemservice (Context.telephony_service);Note: Some phone messages require the appropriate permissions.Get the name of the service provider, such as Telecom, Unicom, mobile The first method is to obtain the IMSI code of the mobile phone, and to judge that it is China Mobile Unicom TelecomGetsimoperatorname () //Returns the Service Provider Name (SPN). IMSI International Mobile Subscriber Identifica

Android Judgment SIM card is the _android of China Mobile \ Chinese Unicom telecom (mobile operator)

The first method: Get the IMSI code of the mobile phone, and judge that China Mobile \ Chinese Unicom Telecom Telephonymanager Telmanager = (telephonymanager) getsystemservice (context.telephony_service); /** gets the SIM card's IMSI code * SIM card Unique ID: IMSI International Mobile User identification Code

Android to judge which mobile operator the SIM card belongs to and examples _android

Android determines which mobile operator the SIM card belongs to The first method: Get the IMSI code of the mobile phone, and judge that China Mobile \ Chinese Unicom Telecom Telephonymanager Telmanager = (telephonymanager) getsystemservice (context.telephony_service); /** gets the SIM card's IMSI code * SI

Read SIM card information of mobile phone in Windows Mobile

Recently, I am working on a mobile police project. I need to obtain SIM card information for identity verification. Considering the acquisition of the international mobile device identification code (IMEI: International Mobile Equipment identification number) and the International

What is the SIM card number (iccid )?

For example, the card number is: 89860 00819 07135 96675 ota898600 China Mobile International Speech Code0 is the last digit (the network number) of the mobile phone service access number ). Currently, China Mobile has the following network numbers: 135, 136, 137, 138, and 139. 8. According to the information found, the SIM

SIM card features obtained in the program

The full name of imsi is the International Mobile Subscriber identification number, that is, the customer identification code. After the mobile phone is turned on, there is a registration process during the network access process. At this time, a customer number (customer phone number) and customer identification number (imsi) will be allocated to access the network, the system uses the control channel to encrypt AlgorithmThe parameter group is sent

Role of mobile phone card (SIM) in mobile communication (Reading Notes)

From: http://blog.c114.net/html/30/67130-20646.html The mobile device (MS) consists of two parts: Mobile devices (me), which we usually use. Mobile phones such as Nokia, Samsung, and ZTE The user identification module (SIM) is the phone card we call at ordinary times, such as a mobile phone card such as 13001384321. What are the functions of mobile phone cards? A

Brief text message format in SIM card

// ------ The bit3-bit0 is NPI (numbering-plan-identification), NPI has a value only when ton is 000,001,010, the other should be 0000, the value is 0 0 0 1, indicating ISDN/telephone numbering plan // -------------------- TON-NPI ------------ the end // ---- 00 TP-PID // -------------------- TP-PID ------------ start // ------ Bit7, bit6 is 0 0 // ------ Bit5-bi50 is 0 0 0 0 0 0 represents Short Message Type 0 // -------------------- TP-PID ------------ the end // ---- 00 is a T

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