한국어

스마트폰앱

온누리070 플레이스토어 다운로드
    acrobits softphone
     온누리 070 카카오 프러스 친구추가온누리 070 카카오 프러스 친구추가친추
     카카오톡 채팅 상담 카카오톡 채팅 상담카톡
    
     라인상담
     라인으로 공유

     페북공유

   ◎위챗 : speedseoul


  
     PAYPAL
     
     PRICE
     

pixel.gif

    before pay call 0088 from app


http://stackoverflow.com/questions/13744565/android-device-id-confusion



http://en.wikipedia.org/wiki/Mobile_equipment_identifier




IMEI

The IMEI is the 'MAC' for the telephony module - the unique ID that the telephone uses when it connects via GSM/GPRS/HSPDA/etc. The GSM network uses it to route calls and data from the phone over the GSM network right up to the gateway into the Internet (which is an IP network).

A telephony module is a chip or circuit board that handles the telephone network, either GSM or CMDA, and often has a slot for a removable SIM card. Some phones have more than one telephony module (active dual- or multi-SIM phones). Each telephony module has its own IMEI.

Manufacturers give each phone (strictly the telephony module) a unique IMEI during manufacturing. However the number can normally be rewritten if you have the right software. This is often done after a phone has been stolen to give the phone a new identity and bipass stolen phone blocking system.

The IMEI can be programmatically obtained using the TelephonyManager.getDeviceId() API.

CDMA phones have a ESN or MEID which are different lengths and formats, even though it is retrieved using the same API.

Android devices without telephony modules - for example many tablets and TV devices - do not have an IMEI. As Schlangi commented, some devices that do not have a telephony module fake the IMEI, so the presence of an IMEI does not (always) guarantee the device has a telephony module.

ANDROID_ID

The ANDROID_ID is another unique number on the phone - this is automatically generated by the OS as it boots for the first time (doing it this way makes it much easier for the manufacturers by removing a step from the production line).

The ANDROID_ID can (and does) change, for example:

It is mainly used by developers (eg identifying and connecting to devices using adb)

ANDROID_ID can be used to identify an Android device given the caveats above, realistically meaning that it uniquely identifies the device over significant portions of the device lifetime, but cannot be relied on.

Also note that there was a bug in Froyo where many devices gave themselves the same ANDROID_ID. This is the bug

Other identifiers

There are a number of other things that can be used identify the device:

  • MAC address of the WiFi module: WifiManager.getConnectionInfo() -> WifiInfo.getMacAddress(). This can often be changed in software, but generally is constant over the device lifetime. Also it can only be read if the WiFi module is switched on.
  • MAC address of the BlueTooth module: BluetoothAdaptor.getAddress(). Like WiFi MAC, this can often be changed in software and may be off when you need it
  • The subscriber's telephone number. This may change if the user requests a new number from the telco, or if the user switches SIMs. It is obtained from TelephonyManager.getLine1Number(). This is only present for Android phone devices with a current SIM installed and a paid service with a telco.
  • The SIM contains its own identifying number (IMSI). This is obtained from theTelephonyManager.getSubscriberId() API. Obviously the SIM may not be present at any specific time, and it changes when the SIM is changed - and users can upgrade/replace their SIM while keeping the same number, so you can't say that this is one-to-one to a specific phone or user.
  • Related to the IMSI is the MSISDN. This functions as the identification of a subscription (your contract for a specific telephone number with your mobile provider) and therefore gives the device its telephone number. The MSISDN may be associated with several SIM cards, and therefore several phones. It comes with all the caveats for reading the SIM above. This may be retrieved withTelephonyManager.getSimSerialNumber(). Thanks Schlangi for the corrections and additions
  • Gingerbread and later has android.os.Build.SERIAL which many manufacturers set (but not all. Bugger).

Other notes


There are some approach to get unique identifier on android phone.

  1. Android ID It is a 64-bit hex string which is generated on the device's first boot. Generally it won't changed unless is factory reset.

    Secure.getString(getContentResolver(), Secure.ANDROID_ID);

The Android ID , considered unreliable because it can sometimes be null. The documentation states that it "can change upon factory reset". This string can also be altered on a rooted phone.

   String m_szAndroidID = Secure.getString(getContentResolver(), Secure.ANDROID_ID);

Returns: 9774d56d682e549c . No special permissions required.

2. The WLAN MAC Address string, is another unique identifier that you can use as a device id. Before you read it, you will need to make sure that your project has the android.permission.ACCESS_WIFI_STATE permission or the WLAN MAC Address will come up as null.

 WifiManager wm = (WifiManager)getSystemService(Context.WIFI_SERVICE);
 String m_szWLANMAC = wm.getConnectionInfo().getMacAddress();
Returns: 00:11:22:33:44:55 (not a real address since this is a custom ROM , as you can see the MAC address can easily be faked).
WLAN doesn't have to be on, to read this value.

3. The BT MAC Address string, available on Android devices with Bluetooth, can be read if your project has the android.permission.BLUETOOTH permission.

    BluetoothAdapter m_BluetoothAdapter = null; // Local Bluetooth adapter
    m_BluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
   String m_szBTMAC = m_BluetoothAdapter.getAddress();

Returns: 43:25:78:50:93:38 . BT doesn't have to be on, to read it. 4. IMEI only for Android devices with Phone use:

 TelephonyManager TelephonyMgr = (TelephonyManager)getSystemService(TELEPHONY_SERVICE);
 String szImei = TelephonyMgr.getDeviceId(); // Requires READ_PHONE_STATE

This requires adding a permission in AndroidManifest.xml, and users will be notified upon installing your software: android.permission.READ_PHONE_STATE. The IMEI is unique for your phone and it looks like this: 359881030314356 (unless you have a pre-production device with an invalid IMEI like 0000000000000). For more info refer this link.

조회 수 :
135346
등록일 :
2014.02.14
12:27:44 (*.251.139.148)
엮인글 :
http://www.webs.co.kr/index.php?document_srl=38756&act=trackback&key=55b
게시글 주소 :
http://www.webs.co.kr/index.php?document_srl=38756
List of Articles
번호 제목 글쓴이 날짜 조회 수sort
» android device id imei imsi wifi bluetooth simserial admin 2014-02-14 135346
79 통화 기능 코드를 사용하여 착신 전환 설정 또는 해제 admin 2012-04-14 87005
78 Getting IMEI Number and other Details admin 2013-11-04 86045
77 SKT KT LGT 휴대폰 착신전환 설정방법 admin 2012-04-14 81897
76 베가레이서2, 갤럭시S3, 옵티머스LTE2 사양비교 admin 2012-05-07 81104
75 발신번호 표시제한으로 온 전화의 번호 알아내는 방법!! admin 2012-04-15 70015
74 발신자표시제한 번호 추적 방법 admin 2012-04-15 62094
73 발신번호표시제한과 추적방법 admin 2012-04-15 58699
72 스마트폰 , PC 음성 및 Video Call (화상통화) 전화통화 앱 BRIA admin 2012-01-15 53927
71 LG U+ 휴대폰 통화도우미 앱에서 착신전환등 통화 부가 설정 기능 admin 2012-04-14 51804
70 통신사별 휴대폰 주파수 사용현황 admin 2012-05-18 45272
69 휴대폰 발신번호표시 통화중대기 착신전환등 부가서비스 가격및 사용방법 admin 2012-04-14 44629
68 아이폰 발신번호 표시제한 발신번호 표시 숨기기 admin 2012-04-15 44517
67 acrobit video call 설정및 사용하기 admin 2012-01-29 44494
66 Sipdroid 음성및 화상 통화 앱 다운로드및 사용 admin 2012-01-15 44372
65 발신번호표시 (CID) 란 ? 용어 설명 file admin 2012-06-28 43448
64 [IMEI 조회] 아이폰 iPhone 2G 3 3GS 4 4S 5 스마트폰 휴대폰 IMEI 조회 방법 admin 2013-11-04 43318
63 8 way How to Find the IMEI Number on a Mobile Phone admin 2013-11-10 43138
62 북경 핸드폰 플랜에 관한 팁 admin 2012-04-15 42660
61 발신번호 표시제한으로 걸려온 온 번호 확인하는 방법 admin 2012-04-15 42284
60 Top 10 Battery Saving Tips for Android admin 2014-02-11 39363
59 Pc 에서 USB 로 폰 인식 안될때 해결 방법 10가지 윈도우 10 admin 2018-01-12 38820
58 핸드폰으로 핸드폰에 전화할때 발신번호제한은 admin 2012-04-15 38735
57 휴대폰 착신 전환 - T world에서 간편하게 하기 admin 2012-04-14 38289
56 한국 휴대폰에서 미국 중국 카나다 베트남 무료 국제전화 서비스 사용방법 admin 2012-04-27 38082
55 중국 연통 휴대폰 착신전환 설정및 해제방법 admin 2012-04-14 38014
54 SK KT LG 통신사별 LTE 무제한 요금제 비교 및 노리는 것은? admin 2013-02-16 38005
53 무료국제전화 서비스 앱 admin 2012-03-18 37959
52 국제로밍을 하지 않고 자신의 휴대폰으로 걸려오는 전화를 외국 전화기에서 받기 admin 2012-04-14 37592
51 SK T끼리 요금제 설명 file admin 2013-03-25 36981