1:  package com.voipplus.mmsclient.Sip;

   2:  

   3:  import android.app.Service;

   4:  import android.content.Intent;

   5:  import android.os.Binder;

   6:  import android.os.IBinder;

   7:  

   8:  public class SipService extends Service {

   9:      private static final String TAG = "SipService";

  10:  

  11:      private final IBinder binder = new LocalBinder();

  12:      private SipState sipState = SipState.IDLE;

  13:  

  14:      private String sipServerUrl;

  15:      private String sipUsername;

  16:      private String sipPassword;

  17:  

  18:      @Override

  19:      public void onCreate() {

  20:          super.onCreate();

  21:          SipUtils.debugInfo(TAG, "🟢 SIP Service Created", sipState);

  22:      }

  23:  

  24:      @Override

  25:      public IBinder onBind(Intent intent) {

  26:          SipUtils.debugInfo(TAG, "🔗 SIP Service Bound", sipState);

  27:          return binder;

  28:      }

  29:  

  30:      // ✅ Binder class for accessing the service

  31:      public class LocalBinder extends Binder {

  32:          public SipService getService() {

  33:              return SipService.this;

  34:          }

  35:      }

  36:  

  37:      // ✅ Set SIP Server parameters

  38:      public void setSipServerParams(String serverUrl, String username, String password) {

  39:          this.sipServerUrl = serverUrl;

  40:          this.sipUsername = username;

  41:          this.sipPassword = password;

  42:          SipUtils.debugInfo(TAG, "🔗 SIP Server Params Set: " + serverUrl, sipState);

  43:      }

  44:  

  45:      // ✅ Register SIP Account

  46:      public void registerSipAccount() {

  47:          if (sipServerUrl == null || sipUsername == null || sipPassword == null) {

  48:              SipUtils.debugInfo(TAG, "❌ SIP Registration Failed: Missing credentials", sipState);

  49:              return;

  50:          }

  51:  

  52:          sipState = SipState.REGISTERING;

  53:          SipUtils.debugInfo(TAG, "🔄 Registering with SIP Server: " + sipServerUrl, sipState);

  54:  

  55:          // Simulating successful registration

  56:          new Thread(() -> {

  57:              try {

  58:                  Thread.sleep(1000); // Simulated network delay

  59:                  sipState = SipState.REGISTERED;

  60:                  SipUtils.debugInfo(TAG, "✅ SIP Registered Successfully", sipState);

  61:              } catch (InterruptedException e) {

  62:                  sipState = SipState.ERROR;

  63:                  SipUtils.debugInfo(TAG, "❌ SIP Registration Error", sipState);

  64:              }

  65:          }).start();

  66:      }

  67:  

  68:      // ✅ Start a SIP Call

  69:      public void startSipCall(String callee) {

  70:          if (sipState != SipState.REGISTERED) {

  71:              SipUtils.debugInfo(TAG, "❌ Cannot start call: Not registered", sipState);

  72:              return;

  73:          }

  74:  

  75:          sipState = SipState.CALLING;

  76:          SipUtils.debugInfo(TAG, "📞 Calling: " + callee, sipState);

  77:  

  78:          // Simulating a call being established

  79:          new Thread(() -> {

  80:              try {

  81:                  Thread.sleep(2000); // Simulated network delay

  82:                  sipState = SipState.IN_CALL;

  83:                  SipUtils.debugInfo(TAG, "✅ Call Established with " + callee, sipState);

  84:              } catch (InterruptedException e) {

  85:                  sipState = SipState.ERROR;

  86:                  SipUtils.debugInfo(TAG, "❌ Call Failed", sipState);

  87:              }

  88:          }).start();

  89:      }

  90:  

  91:      // ✅ End SIP Call

  92:      public void endSipCall() {

  93:          if (sipState != SipState.IN_CALL) {

  94:              SipUtils.debugInfo(TAG, "❌ No Active Call to End", sipState);

  95:              return;

  96:          }

  97:  

  98:          sipState = SipState.IDLE;

  99:          SipUtils.debugInfo(TAG, "🔴 Call Ended", sipState);

 100:      }

 101:  

 102:      // ✅ Get Current SIP State

 103:      public SipState getSipState() {

 104:          return sipState;

 105:      }

 106:  

 107:      @Override

 108:      public void onDestroy() {

 109:          super.onDestroy();

 110:          sipState = SipState.IDLE;

 111:          SipUtils.debugInfo(TAG, "🔴 SIP Service Destroyed", sipState);

 112:      }

 113:  }

 114: