How to record phone calls in android

Question

I want to make an app which records the incoming and outgoing calls and it run automatically when user get or make any call

User · Answer

The accepted answer is perfect  except it does not record outgoing calls  Note that for outgoing calls it is not possible  as near as I can tell from scouring many posts  to detect when the call is actually answered  if anybody can find a way other than scouring notifications or logs please let me know   The easiest solution is to just start recording straight away when the outgoing call is placed and stop recording when IDLE is detected  Just adding the same class as above with outgoing recording in this manner for completeness   private void startRecord String seed            String out   new SimpleDateFormat  dd-MM-yyyy hh-mm-ss   format new Date             File sampleDir   new File Environment getExternalStorageDirectory      TestRecordingDasa1            if   sampleDir exists                  sampleDir mkdirs                      String file name    Record    seed          try               audiofile   File createTempFile file name    amr   sampleDir             catch  IOException e                e printStackTrace                      String path   Environment getExternalStorageDirectory   getAbsolutePath             recorder   new MediaRecorder             recorder setAudioSource MediaRecorder AudioSource VOICE COMMUNICATION           recorder setOutputFormat MediaRecorder OutputFormat AMR NB           recorder setAudioEncoder MediaRecorder AudioEncoder AMR NB           recorder setOutputFile audiofile getAbsolutePath             try               recorder prepare              catch  IllegalStateException e                e printStackTrace              catch  IOException e                e printStackTrace                      recorder start            recordstarted   true               Override     public void onReceive Context context  Intent intent            if  intent getAction   equals ACTION IN                 if   bundle   intent getExtras       null                    state   bundle getString TelephonyManager EXTRA STATE                   if  state equals TelephonyManager EXTRA STATE RINGING                         inCall   bundle getString TelephonyManager EXTRA INCOMING NUMBER                       wasRinging   true                      Toast makeText context   IN       inCall  Toast LENGTH LONG  show                      else if  state equals TelephonyManager EXTRA STATE OFFHOOK                         if  wasRinging    true                             Toast makeText context   ANSWERED   Toast LENGTH LONG  show                             startRecord  incoming                                            else if  state equals TelephonyManager EXTRA STATE IDLE                         wasRinging   false                      Toast makeText context   REJECT    DISCO   Toast LENGTH LONG  show                        if  recordstarted                            recorder stop                            recordstarted   false                                                                  else if  intent getAction   equals ACTION OUT                 if   bundle   intent getExtras       null                    outCall   intent getStringExtra Intent EXTRA PHONE NUMBER                   Toast makeText context   OUT       outCall  Toast LENGTH LONG  show                    startRecord  outgoing                    if   bundle   intent getExtras       null                        state   bundle getString TelephonyManager EXTRA STATE                       if  state    null                            if  state equals TelephonyManager EXTRA STATE IDLE                                 wasRinging   false                              Toast makeText context   REJECT    DISCO   Toast LENGTH LONG  show                                if  recordstarted                                    recorder stop                                    recordstarted   false

User · Answer

There is a simple solution to this problem using this library  I store an instance of the CallRecord class in MyService class  When the service is first initialized  the following code is executed   public class MyService extends Service        public static CallRecord callRecord        Override     public void onCreate             super onCreate             callRecord   new CallRecord Builder this                   setRecordFileName  test                    setRecordDirName  Download                    setRecordDirPath Environment getExternalStorageDirectory   getPath       optional  amp  default value                  setAudioEncoder MediaRecorder AudioEncoder AMR NB     optional  amp  default value                  setOutputFormat MediaRecorder OutputFormat AMR NB     optional  amp  default value                  setAudioSource MediaRecorder AudioSource VOICE COMMUNICATION     optional  amp  default value                  setShowSeed false     optional  default true - gt Ex  RecordFileName incoming amr    RecordFileName outgoing amr                  build            callRecord enableSaveFile            callRecord startCallReceiver                Override     public void onDestroy             super onDestroy            callRecord stopCallReceiver               Next  do not forget to specify permissions in the manifest   I may have some extras here  but keep in mind that some of them are necessary only for newer versions of Android    lt uses-permission android name  android permission READ PHONE STATE    gt   lt uses-permission android name  android permission READ CALL LOG    gt   lt uses-permission android name  android permission CALL PHONE    gt   lt uses-permission android name  android permission PROCESS INCOMING CALLS    gt   lt uses-permission android name  android permission PROCESS OUTGOING CALLS    gt   lt uses-permission android name  android permission FOREGROUND SERVICE    gt   lt uses-permission android name  android permission RECORD AUDIO    gt   lt uses-permission android name  android permission MODIFY AUDIO SETTINGS    gt   lt uses-permission android name  android permission STORAGE    gt   lt uses-permission android name  android permission WRITE EXTERNAL STORAGE    gt    Also it is crucial to request some permissions at the first start of the application  A guide is provided here   If my code doesn t work  alternative code can be found here  I hope I helped you

User · Answer

The answer of pratt is bit uncomplete  because when you restart your device your app will working stop  recording stop  its become useless   i m adding some line that copy in your project for complete working of Pratt answer    lt receiver         android name   DeviceAdminDemo          android permission  android permission BIND DEVICE ADMIN  gt           lt meta-data             android name  android app admin              android resource   xml device admin    gt            lt intent-filter gt               lt action android name  android app action DEVICE ADMIN ENABLED    gt               lt action android name  android app action DEVICE ADMIN DISABLED    gt               lt action android name  android app action DEVICE ADMIN DISABLE REQUESTED    gt               lt action android name  android intent action BOOT COMPLETED    gt               lt category android name  android intent category HOME    gt           lt  intent-filter gt       lt  receiver gt    put this code in onReceive of DeviceAdminDemo   Override public void onReceive Context context  Intent intent        super onReceive context  intent        context stopService new Intent context  TService class        Intent myIntent   new Intent context  TService class       context startService myIntent

User · Answer

I would like to comment on this  even tough Its old post  So  basically  I want to combine 2 answers  one from this post and one from another post that I read  don t know the author of it so please sorry for using your methods   So  here are my classes for achieveving desired result       public class StartActivity extends Activity       public static final int REQUEST CODE   5912        Override     protected void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           PackageManager p   getPackageManager            ComponentName componentName   new ComponentName this  StartActivity class      activity which is first time open in manifiest file which is declare as  lt category android name  android intent category LAUNCHER    gt          p setComponentEnabledSetting componentName  PackageManager COMPONENT ENABLED STATE DISABLED  PackageManager DONT KILL APP           startService new Intent this  StartService class            startService new Intent this  SmsOutgoingService class            try                  Initiate DevicePolicyManager              DevicePolicyManager mDPM    DevicePolicyManager  getSystemService Context DEVICE POLICY SERVICE               ComponentName mAdminName   new ComponentName this  DeviceAdminReciever class                if   mDPM isAdminActive mAdminName                     Intent intent   new Intent DevicePolicyManager ACTION ADD DEVICE ADMIN                   intent putExtra DevicePolicyManager EXTRA DEVICE ADMIN  mAdminName                   intent putExtra DevicePolicyManager EXTRA ADD EXPLANATION   Click on Activate button to secure your application                     startActivityForResult intent  REQUEST CODE                 else                   mDPM lockNow                    finish                       Intent intent   new Intent MainActivity this                     TrackDeviceService class                      startService intent                           catch  Exception e                e printStackTrace                          Override     protected void onActivityResult int requestCode  int resultCode  Intent data            if  REQUEST CODE    requestCode                startService new Intent StartActivity this  TService class                finish                      super onActivityResult requestCode  resultCode  data             And my TService class     public class TService extends Service        private MediaRecorder recorder      private File audiofile      private boolean recordstarted   false       private static final String ACTION IN    android intent action PHONE STATE       private static final String ACTION OUT    android intent action NEW OUTGOING CALL          Override     public IBinder onBind Intent arg0               TODO Auto-generated method stub         return null              Override     public void onDestroy             Log d  service    destroy             super onDestroy                Override     public int onStartCommand Intent intent  int flags  int startId            Log d  StartService    TService            final IntentFilter filter   new IntentFilter            filter addAction ACTION OUT           filter addAction ACTION IN           this registerReceiver new CallReceiver    filter           return super onStartCommand intent  flags  startId              private void startRecording             File sampleDir   new File Environment getExternalStorageDirectory      TestRecordingDasa1            if   sampleDir exists                  sampleDir mkdirs                      String file name    Record           try               audiofile   File createTempFile file name    amr   sampleDir             catch  IOException e                e printStackTrace                      String path   Environment getExternalStorageDirectory   getAbsolutePath             recorder   new MediaRecorder                                recorder setAudioSource MediaRecorder AudioSource VOICE CALL            recorder setAudioSource MediaRecorder AudioSource VOICE COMMUNICATION           recorder setOutputFormat MediaRecorder OutputFormat AMR NB           recorder setAudioEncoder MediaRecorder AudioEncoder AMR NB           recorder setOutputFile audiofile getAbsolutePath             try               recorder prepare              catch  IllegalStateException e                e printStackTrace              catch  IOException e                e printStackTrace                      recorder start            recordstarted   true             private void stopRecording             if  recordstarted                recorder stop                recordstarted   false                        public abstract class PhonecallReceiver extends BroadcastReceiver              The receiver will be recreated whenever android feels like it   We need a static variable to remember data between instantiations          private int lastState   TelephonyManager CALL STATE IDLE          private Date callStartTime          private boolean isIncoming          private String savedNumber     because the passed incoming is only valid in ringing            Override         public void onReceive Context context  Intent intent              startRecording                  We listen to two intents   The new outgoing call only tells us of an outgoing call   We use it to get the number              if  intent getAction   equals  android intent action NEW OUTGOING CALL                      savedNumber   intent getExtras   getString  android intent extra PHONE NUMBER                  else                   String stateStr   intent getExtras   getString TelephonyManager EXTRA STATE                   String number   intent getExtras   getString TelephonyManager EXTRA INCOMING NUMBER                   int state   0                  if  stateStr equals TelephonyManager EXTRA STATE IDLE                         state   TelephonyManager CALL STATE IDLE                    else if  stateStr equals TelephonyManager EXTRA STATE OFFHOOK                         state   TelephonyManager CALL STATE OFFHOOK                    else if  stateStr equals TelephonyManager EXTRA STATE RINGING                         state   TelephonyManager CALL STATE RINGING                                      onCallStateChanged context  state  number                                      Derived classes should override these to respond to specific events of interest         protected abstract void onIncomingCallReceived Context ctx  String number  Date start            protected abstract void onIncomingCallAnswered Context ctx  String number  Date start            protected abstract void onIncomingCallEnded Context ctx  String number  Date start  Date end            protected abstract void onOutgoingCallStarted Context ctx  String number  Date start            protected abstract void onOutgoingCallEnded Context ctx  String number  Date start  Date end            protected abstract void onMissedCall Context ctx  String number  Date start              Deals with actual events            Incoming call-  goes from IDLE to RINGING when it rings  to OFFHOOK when it s answered  to IDLE when its hung up           Outgoing call-  goes from IDLE to OFFHOOK when it dials out  to IDLE when hung up         public void onCallStateChanged Context context  int state  String number                if  lastState    state                      No change  debounce extras                 return                            switch  state                    case TelephonyManager CALL STATE RINGING                      isIncoming   true                      callStartTime   new Date                        savedNumber   number                      onIncomingCallReceived context  number  callStartTime                       break                  case TelephonyManager CALL STATE OFFHOOK                        Transition of ringing- gt offhook are pickups of incoming calls   Nothing done on them                     if  lastState    TelephonyManager CALL STATE RINGING                            isIncoming   false                          callStartTime   new Date                            startRecording                            onOutgoingCallStarted context  savedNumber  callStartTime                         else                           isIncoming   true                          callStartTime   new Date                            startRecording                            onIncomingCallAnswered context  savedNumber  callStartTime                                              break                  case TelephonyManager CALL STATE IDLE                        Went to idle-  this is the end of a call   What type depends on previous state s                      if  lastState    TelephonyManager CALL STATE RINGING                              Ring but no pickup-  a miss                         onMissedCall context  savedNumber  callStartTime                         else if  isIncoming                            stopRecording                            onIncomingCallEnded context  savedNumber  callStartTime  new Date                           else                           stopRecording                            onOutgoingCallEnded context  savedNumber  callStartTime  new Date                                               break                            lastState   state                        public class CallReceiver extends PhonecallReceiver             Override         protected void onIncomingCallReceived Context ctx  String number  Date start                Log d  onIncomingCallReceived   number         start toString                         Override         protected void onIncomingCallAnswered Context ctx  String number  Date start                Log d  onIncomingCallAnswered   number         start toString                         Override         protected void onIncomingCallEnded Context ctx  String number  Date start  Date end                Log d  onIncomingCallEnded   number         start toString       t    end toString                         Override         protected void onOutgoingCallStarted Context ctx  String number  Date start                Log d  onOutgoingCallStarted   number         start toString                         Override         protected void onOutgoingCallEnded Context ctx  String number  Date start  Date end                Log d  onOutgoingCallEnded   number         start toString       t    end toString                         Override         protected void onMissedCall Context ctx  String number  Date start                Log d  onMissedCall   number         start toString               PostCallHandler postCallHandler   new PostCallHandler number   janskd                              inside TService class you will find CallReceiever class that is going to handle everything you need from the call  You can add parameters as per your will  but  the main point is important   From your MainActvitiy call Service that will start your Receiever  If you want to record media from receiever directly  you will get errors  so  you need to register Receiever from service  After that  you can call start recording and end recording wherever you like   Calling return super onStartCommand intent  flags  startId   will have that Service lasting for more than one call  so keep that in mind    Finally  AndroidManifest xml file    lt manifest     package  your package name      xmlns android  http   schemas android com apk res android      android installLocation  internalOnly  gt        lt uses-permission android name  android permission INTERNET   gt       lt uses-permission android name  android permission ACCESS NETWORK STATE   gt       lt uses-permission android name  android permission CHANGE NETWORK STATE   gt       lt uses-permission android name  android permission READ PHONE STATE   gt       lt uses-permission android name  android permission PROCESS OUTGOING CALLS   gt       lt uses-permission android name  android permission RECEIVE BOOT COMPLETED   gt       lt uses-permission android name  android permission WAKE LOCK   gt       lt uses-permission android name  android permission MODIFY PHONE STATE   gt       lt uses-permission android name  android permission RECEIVE SMS   gt       lt uses-permission android name  android permission READ SMS   gt       lt uses-permission android name  android permission WRITE EXTERNAL STORAGE    gt       lt uses-permission android name  android permission RECORD AUDIO    gt       lt uses-permission android name  android permission STORAGE    gt        lt application         android name   AppController          android allowBackup  true          android icon   mipmap ic launcher          android label   string app name          android supportsRtl  true          android theme   style AppTheme  gt            lt activity android name   ui StartActivity  gt               lt intent-filter gt                   lt action android name  android intent action MAIN   gt                    lt category android name  android intent category LAUNCHER   gt               lt  intent-filter gt           lt  activity gt            lt receiver             android name   io boot DeviceAdminReciever              android permission  android permission BIND DEVICE ADMIN   gt               lt meta-data                 android name  android app device admin                  android resource   xml my admin    gt               lt intent-filter gt                   lt action android name  android app action DEVICE ADMIN ENABLED    gt                   lt action android name  android app action DEVICE ADMIN DISABLED    gt                   lt action android name  android app action DEVICE ADMIN DISABLE REQUESTED    gt               lt  intent-filter gt           lt  receiver gt            lt service android name   io calls TService   gt           lt  service gt       lt  application gt    lt  manifest gt    So  this is it  its working perfectly with my Samsung Galaxy s6 Edge   Ive tested it on Galaxy Note 4 and on Samsung J5  a big thank you to the authors of this post and the post about receieving phone calls

User · Answer

Ok  for this first of all you need to use Device Policy Manager  and need to make your device Admin device  After that you have to create one BroadCast receiver and one service  I am posting code here and its working fine   MainActivity   public class MainActivity extends Activity       private static final int REQUEST CODE   0      private DevicePolicyManager mDPM      private ComponentName mAdminName        Override     protected void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           setContentView R layout activity main            try                  Initiate DevicePolicyManager              mDPM    DevicePolicyManager  getSystemService Context DEVICE POLICY SERVICE               mAdminName   new ComponentName this  DeviceAdminDemo class                if   mDPM isAdminActive mAdminName                     Intent intent   new Intent DevicePolicyManager ACTION ADD DEVICE ADMIN                   intent putExtra DevicePolicyManager EXTRA DEVICE ADMIN  mAdminName                   intent putExtra DevicePolicyManager EXTRA ADD EXPLANATION   Click on Activate button to secure your application                     startActivityForResult intent  REQUEST CODE                 else                      mDPM lockNow                       Intent intent   new Intent MainActivity this                     TrackDeviceService class                      startService intent                           catch  Exception e                e printStackTrace                           Override     protected void onActivityResult int requestCode  int resultCode  Intent data            super onActivityResult requestCode  resultCode  data            if  REQUEST CODE    requestCode                    Intent intent   new Intent MainActivity this  TService class                   startService intent                          DeviceAdminDemo class  public class DeviceAdminDemo extends DeviceAdminReceiver        Override     public void onReceive Context context  Intent intent            super onReceive context  intent              public void onEnabled Context context  Intent intent                public void onDisabled Context context  Intent intent                 TService Class  public class TService extends Service       MediaRecorder recorder      File audiofile      String name  phonenumber      String audio format      public String Audio Type      int audioSource      Context context      private Handler handler      Timer timer      Boolean offHook   false  ringing   false      Toast toast      Boolean isOffHook   false      private boolean recordstarted   false       private static final String ACTION IN    android intent action PHONE STATE       private static final String ACTION OUT    android intent action NEW OUTGOING CALL       private CallBr br call           Override     public IBinder onBind Intent arg0               TODO Auto-generated method stub         return null              Override     public void onDestroy             Log d  service    destroy             super onDestroy                Override     public int onStartCommand Intent intent  int flags  int startId               final String terminate   String             intent getExtras   get  terminate                 intent getStringExtra  terminate               Log d  TAG    service started                          TelephonyManager telephony    TelephonyManager             getSystemService Context TELEPHONY SERVICE      TelephonyManager               object            CustomPhoneStateListener customPhoneListener   new            CustomPhoneStateListener               telephony listen customPhoneListener             PhoneStateListener LISTEN CALL STATE              context   getApplicationContext             final IntentFilter filter   new IntentFilter            filter addAction ACTION OUT           filter addAction ACTION IN           this br call   new CallBr            this registerReceiver this br call  filter               if terminate    null               stopSelf                         return START NOT STICKY             public class CallBr extends BroadcastReceiver           Bundle bundle          String state          String inCall  outCall          public boolean wasRinging   false            Override         public void onReceive Context context  Intent intent                if  intent getAction   equals ACTION IN                     if   bundle   intent getExtras       null                        state   bundle getString TelephonyManager EXTRA STATE                       if  state equals TelephonyManager EXTRA STATE RINGING                             inCall   bundle getString TelephonyManager EXTRA INCOMING NUMBER                           wasRinging   true                          Toast makeText context   IN       inCall  Toast LENGTH LONG  show                          else if  state equals TelephonyManager EXTRA STATE OFFHOOK                             if  wasRinging    true                                 Toast makeText context   ANSWERED   Toast LENGTH LONG  show                                 String out   new SimpleDateFormat  dd-MM-yyyy hh-mm-ss   format new Date                                 File sampleDir   new File Environment getExternalStorageDirectory      TestRecordingDasa1                                if   sampleDir exists                                      sampleDir mkdirs                                                              String file name    Record                               try                                   audiofile   File createTempFile file name    amr   sampleDir                                 catch  IOException e                                    e printStackTrace                                                              String path   Environment getExternalStorageDirectory   getAbsolutePath                                 recorder   new MediaRecorder                                recorder setAudioSource MediaRecorder AudioSource VOICE CALL                                recorder setAudioSource MediaRecorder AudioSource VOICE COMMUNICATION                               recorder setOutputFormat MediaRecorder OutputFormat AMR NB                               recorder setAudioEncoder MediaRecorder AudioEncoder AMR NB                               recorder setOutputFile audiofile getAbsolutePath                                 try                                   recorder prepare                                  catch  IllegalStateException e                                    e printStackTrace                                  catch  IOException e                                     e printStackTrace                                                              recorder start                                recordstarted   true                                                  else if  state equals TelephonyManager EXTRA STATE IDLE                             wasRinging   false                          Toast makeText context   REJECT    DISCO   Toast LENGTH LONG  show                            if  recordstarted                                recorder stop                                recordstarted   false                                                                                  else if  intent getAction   equals ACTION OUT                     if   bundle   intent getExtras       null                        outCall   intent getStringExtra Intent EXTRA PHONE NUMBER                       Toast makeText context   OUT       outCall  Toast LENGTH LONG  show                                                           Permission in manifest file   lt uses-permission android name  android permission WRITE EXTERNAL STORAGE    gt       lt uses-permission android name  android permission RECORD AUDIO    gt       lt uses-permission android name  android permission PROCESS OUTGOING CALLS    gt       lt uses-permission android name  android permission READ PHONE STATE    gt       lt uses-permission android name  android permission STORAGE    gt      my admin xml   lt device-admin xmlns android  http   schemas android com apk res android   gt       lt uses-policies gt           lt force-lock   gt       lt  uses-policies gt   lt  device-admin gt      Declare following thing in manifest   Declare DeviceAdminDemo class to manifest      lt receiver             android name  com example voicerecorder1 DeviceAdminDemo              android description   string device description              android label   string device admin label              android permission  android permission BIND DEVICE ADMIN   gt               lt meta-data                 android name  android app device admin                  android resource   xml my admin    gt                 lt intent-filter gt                   lt action android name  android app action DEVICE ADMIN ENABLED    gt                   lt action android name  android app action DEVICE ADMIN DISABLED    gt                   lt action android name  android app action DEVICE ADMIN DISABLE REQUESTED    gt               lt  intent-filter gt           lt  receiver gt    lt service android name   TService   gt           lt  service gt

User · Answer

Below code is working for me to record a outgoing phone call    Call Recording varibales private static final String AUDIO RECORDER FILE EXT 3GP     3gp   private static final String AUDIO RECORDER FILE EXT MP4     mp4   private static final String AUDIO RECORDER FOLDER    AudioRecorder    private MediaRecorder recorder   null  private int currentFormat   0  private int output formats       MediaRecorder OutputFormat MPEG 4          MediaRecorder OutputFormat THREE GPP    private String file exts       AUDIO RECORDER FILE EXT MP4          AUDIO RECORDER FILE EXT 3GP     AudioManager audioManager      put this methods to outside of oncreate   method  private String getFilename         String filepath   Environment getExternalStorageDirectory   getPath        File file   new File filepath  AUDIO RECORDER FOLDER        if   file exists              file mkdirs               return  file getAbsolutePath           System currentTimeMillis     file exts currentFormat       private MediaRecorder OnErrorListener errorListener   new MediaRecorder OnErrorListener          Override     public void onError MediaRecorder mr  int what  int extra            Toast makeText CallActivity this                   Error      what          extra  Toast LENGTH SHORT  show              private MediaRecorder OnInfoListener infoListener   new MediaRecorder OnInfoListener          Override     public void onInfo MediaRecorder mr  int what  int extra            Toast makeText CallActivity this                   Warning      what          extra  Toast LENGTH SHORT                   show                 below part of code to make your device on speaker      audioManager    AudioManager getApplicationContext   getSystemService Context AUDIO SERVICE        audioManager setMode AudioManager MODE IN CALL       audioManager setSpeakerphoneOn true       below part of code to start recording  recorder   new MediaRecorder        recorder setAudioSource MediaRecorder AudioSource MIC       recorder setOutputFormat output formats currentFormat          recorder setOutputFormat MediaRecorder OutputFormat THREE GPP       recorder setAudioEncoder MediaRecorder AudioEncoder AMR NB       recorder setOutputFile getFilename         recorder setOnErrorListener errorListener       recorder setOnInfoListener infoListener        try           recorder prepare            recorder start          catch  IllegalStateException e             Log e  REDORDING      e getMessage                 e printStackTrace          catch  IOException e            Log e  REDORDING      e getMessage             e printStackTrace              For stop recording and keep in mind to set speaker off while call end or stop  audioManager setSpeakerphoneOn false        try          if  null    recorder                recorder stop                recorder reset                recorder release                 recorder   null                 catch RuntimeException stopException            And give permission to manifest file    lt uses-permission android name  android permission CALL PHONE    gt   lt uses-permission android name  android permission PROCESS OUTGOING CALLS    gt   lt uses-permission android name  android permission READ PHONE STATE    gt   lt uses-permission android name  android permission RECORD AUDIO    gt   lt uses-permission android name  android permission MODIFY AUDIO SETTINGS   gt   lt uses-permission android name  android permission WRITE EXTERNAL STORAGE    gt

[android] How to record phone calls in android?

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