diff --git a/src/org/linphone/purchase/InAppPurchaseActivity.java b/src/org/linphone/purchase/InAppPurchaseActivity.java
index 27db5dd46..fd7bdfdd7 100644
--- a/src/org/linphone/purchase/InAppPurchaseActivity.java
+++ b/src/org/linphone/purchase/InAppPurchaseActivity.java
@@ -25,6 +25,8 @@ import org.linphone.LinphoneManager;
 import org.linphone.R;
 import org.linphone.core.LinphoneProxyConfig;
 import org.linphone.mediastream.Log;
+import org.linphone.xmlrpc.XmlRpcHelper;
+import org.linphone.xmlrpc.XmlRpcListenerBase;
 
 import android.app.Activity;
 import android.content.Intent;
@@ -81,6 +83,7 @@ public class InAppPurchaseActivity extends Activity implements InAppPurchaseList
 	public void onServiceAvailableForQueries() {
 		email.setText(inAppPurchaseHelper.getGmailAccount());
 		email.setEnabled(false);
+		
 		inAppPurchaseHelper.getPurchasedItemsAsync();
 	}
 
@@ -108,9 +111,15 @@ public class InAppPurchaseActivity extends Activity implements InAppPurchaseList
 	}
 
 	@Override
-	public void onPurchasedItemConfirmationQueryFinished(Purchasable item) {
-		if (item != null) {
-			Log.d("[In-app purchase] Item bought, expires " + item.getExpireDate());
+	public void onPurchasedItemConfirmationQueryFinished(boolean success) {
+		if (success) {
+			XmlRpcHelper xmlRpcHelper = new XmlRpcHelper();
+			xmlRpcHelper.createAccountAsync(new XmlRpcListenerBase() {
+				@Override
+				public void onAccountCreated(String result) {
+					//TODO
+				}
+			}, getUsername(), email.getText().toString(), null);
 		}
 	}
 
@@ -118,7 +127,13 @@ public class InAppPurchaseActivity extends Activity implements InAppPurchaseList
 	public void onClick(View v) {
 		Purchasable item = (Purchasable) v.getTag();
 		if (v.equals(recoverAccountButton)) {
-			inAppPurchaseHelper.recoverAccount(getUsername(), item.getPayload(), item.getPayloadSignature());
+			XmlRpcHelper xmlRpcHelper = new XmlRpcHelper();
+			xmlRpcHelper.createAccountAsync(new XmlRpcListenerBase() {
+				@Override
+				public void onAccountCreated(String result) {
+					//TODO
+				}
+			}, getUsername(), email.getText().toString(), null);
 		} else {
 			inAppPurchaseHelper.purchaseItemAsync(item.getId(), getUsername());
 		}
@@ -126,7 +141,7 @@ public class InAppPurchaseActivity extends Activity implements InAppPurchaseList
 	
 	@Override
 	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
-		inAppPurchaseHelper.parseAndVerifyPurchaseItemResultAsync(requestCode, resultCode, data, getUsername());
+		inAppPurchaseHelper.parseAndVerifyPurchaseItemResultAsync(requestCode, resultCode, data, getUsername(), email.getText().toString());
 	}
 
 	@Override
@@ -163,7 +178,13 @@ public class InAppPurchaseActivity extends Activity implements InAppPurchaseList
 		text.setText("Buy account (" + item.getPrice() + ")");
 		ImageView image = (ImageView) layout.findViewById(R.id.image);
 		image.setTag(item);
-		image.setOnClickListener(this);
+		image.setOnClickListener(this);XmlRpcHelper xmlRpcHelper = new XmlRpcHelper();
+		xmlRpcHelper.createAccountAsync(new XmlRpcListenerBase() {
+			@Override
+			public void onAccountCreated(String result) {
+				//TODO
+			}
+		}, getUsername(), email.getText().toString(), null);
 		
 		buyItemButton = image;
 		buyItemButton.setEnabled(usernameOk);
diff --git a/src/org/linphone/purchase/InAppPurchaseHelper.java b/src/org/linphone/purchase/InAppPurchaseHelper.java
index 25fbf2f63..de4ad6c78 100644
--- a/src/org/linphone/purchase/InAppPurchaseHelper.java
+++ b/src/org/linphone/purchase/InAppPurchaseHelper.java
@@ -240,13 +240,13 @@ public class InAppPurchaseHelper {
         					ArrayList<String>  purchaseDataList = purchasedItems.getStringArrayList(RESPONSE_INAPP_PURCHASE_DATA_LIST);
         					ArrayList<String>  signatureList = purchasedItems.getStringArrayList(RESPONSE_INAPP_SIGNATURE_LIST);
         					continuationToken = purchasedItems.getString(RESPONSE_INAPP_CONTINUATION_TOKEN);
-        	
+        					
 				   			for (int i = 0; i < purchaseDataList.size(); ++i) {
 				   				String purchaseData = purchaseDataList.get(i);
     				   			String signature = signatureList.get(i);
     							Log.d("[In-app purchase] " + purchaseData);
         				      
-    				   			Purchasable item = verifySignatureAndGetExpire(purchaseData, signature);
+    				   			Purchasable item = verifySignature(purchaseData, signature);
     				   			if (item != null) {
     				   				items.add(item);
     				   			}
@@ -269,6 +269,25 @@ public class InAppPurchaseHelper {
 		}).start();
 	}
 	
+	public void parseAndVerifyPurchaseItemResultAsync(int requestCode, int resultCode, Intent data, String username, String email) {
+		if (requestCode == ACTIVITY_RESULT_CODE_PURCHASE_ITEM) {
+			int responseCode = data.getIntExtra(RESPONSE_CODE, 0);
+
+			if (resultCode == Activity.RESULT_OK && responseCode == RESPONSE_RESULT_OK) {
+				String payload = data.getStringExtra(RESPONSE_INAPP_PURCHASE_DATA);
+				String signature = data.getStringExtra(RESPONSE_INAPP_SIGNATURE);
+				
+				XmlRpcHelper xmlRpcHelper = new XmlRpcHelper();
+				xmlRpcHelper.verifySignatureAsync(new XmlRpcListenerBase() {
+					@Override
+					public void onSignatureVerified(boolean success) {
+						mListener.onPurchasedItemConfirmationQueryFinished(success);
+					}
+				}, payload, signature);
+			}
+		}
+	}
+	
 	private void purchaseItem(String productId, String sipIdentity) {
 		Bundle buyIntentBundle = null;
 		try {
@@ -295,48 +314,6 @@ public class InAppPurchaseHelper {
 		}).start();
 	}
 	
-	public void parseAndVerifyPurchaseItemResultAsync(int requestCode, int resultCode, Intent data, String username) {
-		if (requestCode == ACTIVITY_RESULT_CODE_PURCHASE_ITEM) {
-			int responseCode = data.getIntExtra(RESPONSE_CODE, 0);
-			String purchaseData = data.getStringExtra(RESPONSE_INAPP_PURCHASE_DATA);
-			String signature = data.getStringExtra(RESPONSE_INAPP_SIGNATURE);
-
-			if (resultCode == Activity.RESULT_OK && responseCode == RESPONSE_RESULT_OK) {
-				verifySignatureAndCreateAccountAsync(new VerifiedSignatureListener() {
-					@Override
-					public void onParsedAndVerifiedSignatureQueryFinished(Purchasable item) {
-						if (item != null) {
-							mListener.onPurchasedItemConfirmationQueryFinished(item);
-						}
-					}
-				}, purchaseData, signature, username);
-			} else {
-				Log.e("[In-app purchase] Error: resultCode is " + resultCode + " and responseCode is " + responseCodeToErrorMessage(responseCode));
-	    		mListener.onError(responseCodeToErrorMessage(responseCode));
-			}
-		}
-	}
-	
-	public void recoverAccount(String sipUsername, String purchasedData, String signature) {
-		XmlRpcHelper helper = new XmlRpcHelper();
-		helper.createAccountAsync(new XmlRpcListenerBase() {
-			@Override
-			public void onAccountCreated(String result) {
-				mListener.onRecoverAccountSuccessful(true);
-			}
-		}, mGmailAccount, sipUsername, purchasedData, signature, mGmailAccount, null);
-	}
-	
-	public void activateAccount(String sipUsername, String purchasedData, String signature) {
-		XmlRpcHelper helper = new XmlRpcHelper();
-		helper.activateAccountAsync(new XmlRpcListenerBase() {
-			@Override
-			public void onAccountActivated(String result) {
-				mListener.onActivateAccountSuccessful(true);
-			}
-		}, mGmailAccount, sipUsername, purchasedData, signature);
-	}
-	
 	public void destroy() {
 		mContext.unbindService(mServiceConn);
 	}
@@ -359,67 +336,22 @@ public class InAppPurchaseHelper {
     	return emailPattern.matcher(email).matches();
 	}
 	
-	private Purchasable verifySignatureAndGetExpire(String purchasedData, String signature) {
+	private Purchasable verifySignature(String payload, String signature) {
 		XmlRpcHelper helper = new XmlRpcHelper();
-		Object result = helper.getAccountExpire(mGmailAccount, purchasedData, signature);
-		long longExpire = -1;
-		String expire = (String)result;
-				
-		try {
-			longExpire = Long.parseLong(expire);
-		} catch (NumberFormatException nfe) {
-			Log.e("[In-app purchase] Server failure: " + result);
-    		mListener.onError(expire);
-			return null;
-		}
-		
-		try {
-			JSONObject json = new JSONObject(purchasedData);
-			String productId = json.getString(PURCHASE_DETAILS_PRODUCT_ID);
-			Purchasable item = new Purchasable(productId); 
-			item.setExpire(longExpire);
-			item.setPayloadAndSignature(purchasedData, signature);
-			//TODO parse JSON result to get the purchasable in it
-			return item;
-		} catch (JSONException e) {
-			Log.e(e);
+		if (helper.verifySignature(payload, signature)) {
+			try {
+				JSONObject json = new JSONObject(payload);
+				String productId = json.getString(PURCHASE_DETAILS_PRODUCT_ID);
+				Purchasable item = new Purchasable(productId); 
+				item.setPayloadAndSignature(payload, signature);
+				return item;
+			} catch (JSONException e) {
+				Log.e(e);
+			}
 		}
 		return null;
 	}
 	
-	private void verifySignatureAndCreateAccountAsync(final VerifiedSignatureListener listener, final String purchasedData, final String signature, String username) {
-		XmlRpcHelper helper = new XmlRpcHelper();
-		helper.createAccountAsync(new XmlRpcListenerBase() {
-			@Override
-			public void onAccountCreated(String result) {
-				try {
-					long longExpire = -1;
-					String expire = (String)result;
-					
-					try {
-						longExpire = Long.parseLong(expire);
-					} catch (NumberFormatException nfe) {
-						Log.e("[In-app purchase] Server failure: " + result);
-						listener.onParsedAndVerifiedSignatureQueryFinished(null);
-			    		mListener.onError(result);
-						return;
-					}
-
-					JSONObject json = new JSONObject(purchasedData);
-					String productId = json.getString(PURCHASE_DETAILS_PRODUCT_ID);
-					Purchasable item = new Purchasable(productId); 
-					item.setExpire(longExpire);
-					item.setPayloadAndSignature(purchasedData, signature);
-					//TODO parse JSON result to get the purchasable in it
-			    	listener.onParsedAndVerifiedSignatureQueryFinished(item);
-			    	return;
-				} catch (JSONException e) {
-					Log.e(e);
-				}
-			}
-		}, mGmailAccount, username, purchasedData, signature, mGmailAccount, null);
-	}
-	
 	interface VerifiedSignatureListener {
 		void onParsedAndVerifiedSignatureQueryFinished(Purchasable item);
 	}
diff --git a/src/org/linphone/purchase/InAppPurchaseListener.java b/src/org/linphone/purchase/InAppPurchaseListener.java
index 8f44ec751..a0f17878a 100644
--- a/src/org/linphone/purchase/InAppPurchaseListener.java
+++ b/src/org/linphone/purchase/InAppPurchaseListener.java
@@ -43,9 +43,9 @@ public interface InAppPurchaseListener {
 	
 	/**
 	 * Callback called when the purchase has been validated by our external server
-	 * @param item the item the user just bought
+	 * @param success true if ok, false otherwise
 	 */
-	void onPurchasedItemConfirmationQueryFinished(Purchasable item);
+	void onPurchasedItemConfirmationQueryFinished(boolean success);
 
 	/**
 	 * Callback called when the account has been recovered (or not)
diff --git a/src/org/linphone/purchase/InAppPurchaseListenerBase.java b/src/org/linphone/purchase/InAppPurchaseListenerBase.java
index 06b054f13..b99a97ddc 100644
--- a/src/org/linphone/purchase/InAppPurchaseListenerBase.java
+++ b/src/org/linphone/purchase/InAppPurchaseListenerBase.java
@@ -22,7 +22,7 @@ public class InAppPurchaseListenerBase implements InAppPurchaseListener {
 	}
 
 	@Override
-	public void onPurchasedItemConfirmationQueryFinished(Purchasable item) {
+	public void onPurchasedItemConfirmationQueryFinished(boolean success) {
 		// TODO Auto-generated method stub
 		
 	}
diff --git a/src/org/linphone/xmlrpc/XmlRpcHelper.java b/src/org/linphone/xmlrpc/XmlRpcHelper.java
index 10e3bcfa6..2cd684323 100644
--- a/src/org/linphone/xmlrpc/XmlRpcHelper.java
+++ b/src/org/linphone/xmlrpc/XmlRpcHelper.java
@@ -12,7 +12,6 @@ import de.timroes.axmlrpc.XMLRPCException;
 import de.timroes.axmlrpc.XMLRPCServerException;
 
 public class XmlRpcHelper {
-    public static final String OS = "google";
     public static final String SERVER_ERROR_INVALID_ACCOUNT = "ERROR_INVALID_ACCOUNT";
     public static final String SERVER_ERROR_PURCHASE_CANCELLED = "ERROR_PURCHASE_CANCELLED";
     public static final String SERVER_ERROR_RECEIPT_PARSING_FAILED = "ERROR_RECEIPT_PARSING_FAILED";
@@ -34,7 +33,7 @@ public class XmlRpcHelper {
 		}
     }
 	
-	public void createAccountAsync(final XmlRpcListener listener, String gmailAccount, String username, String payload, String signature, String email, String password) {
+	public void createAccountAsync(final XmlRpcListener listener, String username, String email, String password) {
 		if (mXmlRpcClient != null) {
 			mXmlRpcClient.callAsync(new XMLRPCCallback() {
 				@Override
@@ -62,17 +61,17 @@ public class XmlRpcHelper {
 					Log.e(error);
 					listener.onError(error.toString());
 				}
-			}, "create_account_from_in_app_purchase", gmailAccount, username, payload, signature, OS, email, password == null ? "" : password);
+			}, "create_account", username, email, password == null ? "" : password);
 		} else {
 			Log.e(CLIENT_ERROR_INVALID_SERVER_URL);
 			listener.onError(CLIENT_ERROR_INVALID_SERVER_URL);
 		}
 	}
 	
-	public String createAccount(String gmailAccount, String username, String payload, String signature, String email, String password) {
+	public String createAccount(String username, String email, String password) {
 		if (mXmlRpcClient != null) {
 			try {
-				Object object = mXmlRpcClient.call("create_account_from_in_app_purchase", gmailAccount, username, payload, signature, OS, email, password == null ? "" : password);
+				Object object = mXmlRpcClient.call("create_account", username, email, password == null ? "" : password);
 				String result = (String)object;
 				Log.d("createAccount: " + result);
 				
@@ -91,63 +90,6 @@ public class XmlRpcHelper {
 		return null;
 	}
 	
-	public void getAccountExpireAsync(final XmlRpcListener listener, String gmailAccount, String payload, String signature) {
-		if (mXmlRpcClient != null) {
-			mXmlRpcClient.callAsync(new XMLRPCCallback() {
-				@Override
-				public void onServerError(long id, XMLRPCServerException error) {
-					Log.e(error);
-					listener.onError(error.toString());
-				}
-				
-				@Override
-				public void onResponse(long id, Object object) {
-					String result = (String)object;
-					Log.d("getAccountExpireAsync: " + result);
-					
-					if (result.startsWith("ERROR_")) {
-						Log.e(result);
-						listener.onError(result);
-						return;
-					}
-					
-					listener.onAccountExpireFetched(result);
-				}
-				
-				@Override
-				public void onError(long id, XMLRPCException error) {
-					Log.e(error);
-					listener.onError(error.toString());
-				}
-			}, "get_expiration_date", gmailAccount, payload, signature, OS);
-		} else {
-			Log.e(CLIENT_ERROR_INVALID_SERVER_URL);
-			listener.onError(CLIENT_ERROR_INVALID_SERVER_URL);
-		}
-	}
-	
-	public String getAccountExpire(String gmailAccount, String payload, String signature) {
-		if (mXmlRpcClient != null) {
-			try {
-				Object object = mXmlRpcClient.call("get_expiration_date", gmailAccount, payload, signature, OS);
-				String result = (String)object;
-				Log.d("getAccountExpire: " + result);
-				
-				if (result.startsWith("ERROR_")) {
-					Log.e(result);
-					return null;
-				}
-				return result;
-				
-			} catch (XMLRPCException e) {
-				Log.e(e);
-			}
-		} else {
-			Log.e(CLIENT_ERROR_INVALID_SERVER_URL);
-		}
-		return null;
-	}
-	
 	public void getAccountExpireAsync(final XmlRpcListener listener, String username, String password) {
 		if (mXmlRpcClient != null) {
 			mXmlRpcClient.callAsync(new XMLRPCCallback() {
@@ -176,7 +118,7 @@ public class XmlRpcHelper {
 					Log.e(error);
 					listener.onError(error.toString());
 				}
-			}, "get_expiration_for_account", username, password, OS);
+			}, "get_expiration_for_account", username, password);
 		} else {
 			Log.e(CLIENT_ERROR_INVALID_SERVER_URL);
 			listener.onError(CLIENT_ERROR_INVALID_SERVER_URL);
@@ -186,7 +128,7 @@ public class XmlRpcHelper {
 	public String getAccountExpire(String username, String password) {
 		if (mXmlRpcClient != null) {
 			try {
-				Object object = mXmlRpcClient.call("get_expiration_for_account", username, password, OS);
+				Object object = mXmlRpcClient.call("get_expiration_for_account", username, password);
 				String result = (String)object;
 				Log.d("getAccountExpire: " + result);
 				
@@ -205,7 +147,64 @@ public class XmlRpcHelper {
 		return null;
 	}
 	
-	public void activateAccountAsync(final XmlRpcListener listener, String gmailAccount, String username, String payload, String signature) {
+	public void updateAccountExpireAsync(final XmlRpcListener listener, String username, String password, String payload, String signature) {
+		if (mXmlRpcClient != null) {
+			mXmlRpcClient.callAsync(new XMLRPCCallback() {
+				@Override
+				public void onServerError(long id, XMLRPCServerException error) {
+					Log.e(error);
+					listener.onError(error.toString());
+				}
+				
+				@Override
+				public void onResponse(long id, Object object) {
+					String result = (String)object;
+					Log.d("updateAccountExpireAsync: " + result);
+					
+					if (result.startsWith("ERROR_")) {
+						Log.e(result);
+						listener.onError(result);
+						return;
+					}
+					
+					listener.onAccountExpireUpdated(result);
+				}
+				
+				@Override
+				public void onError(long id, XMLRPCException error) {
+					Log.e(error);
+					listener.onError(error.toString());
+				}
+			}, "update_expiration_date", username, password, payload, signature);
+		} else {
+			Log.e(CLIENT_ERROR_INVALID_SERVER_URL);
+			listener.onError(CLIENT_ERROR_INVALID_SERVER_URL);
+		}
+	}
+	
+	public String updateAccountExpire(String username, String password, String payload, String signature) {
+		if (mXmlRpcClient != null) {
+			try {
+				Object object = mXmlRpcClient.call("update_expiration_date", username, password, payload, signature);
+				String result = (String)object;
+				Log.d("updateAccountExpire: " + result);
+				
+				if (result.startsWith("ERROR_")) {
+					Log.e(result);
+					return null;
+				}
+				return result;
+				
+			} catch (XMLRPCException e) {
+				Log.e(e);
+			}
+		} else {
+			Log.e(CLIENT_ERROR_INVALID_SERVER_URL);
+		}
+		return null;
+	}
+	
+	public void activateAccountAsync(final XmlRpcListener listener, String username, String password) {
 		if (mXmlRpcClient != null) {
 			mXmlRpcClient.callAsync(new XMLRPCCallback() {
 				@Override
@@ -234,17 +233,17 @@ public class XmlRpcHelper {
 					Log.e(error);
 					listener.onError(error.toString());
 				}
-			}, "activate_account", gmailAccount, username, payload, signature, OS);
+			}, "activate_account", username, password);
 		} else {
 			Log.e(CLIENT_ERROR_INVALID_SERVER_URL);
 			listener.onError(CLIENT_ERROR_INVALID_SERVER_URL);
 		}
 	}
 	
-	public String activateAccount(String gmailAccount, String username, String payload, String signature) {
+	public String activateAccount(String gmailAccount, String username, String password) {
 		if (mXmlRpcClient != null) {
 			try {
-				Object object = mXmlRpcClient.call("activate_account", gmailAccount, username, payload, signature, OS);
+				Object object = mXmlRpcClient.call("activate_account", username, password);
 				String result = (String)object;
 				Log.d("activateAccount: " + result);
 				
@@ -331,10 +330,10 @@ public class XmlRpcHelper {
 					String result = (String)object;
 					Log.d("isTrialAccountAsync: " + result);
 					
-					if (!"ERROR_TOKEN_NOT_FOUND".equals(result) && !"OK".equals(result)) {
+					if (!"NOK".equals(result) && !"OK".equals(result)) {
 						listener.onError(result);
 					}
-					listener.onAccountFetched("ERROR_TOKEN_NOT_FOUND".equals(result));
+					listener.onAccountFetched("OK".equals(result));
 				}
 				
 				@Override
@@ -342,7 +341,7 @@ public class XmlRpcHelper {
 					Log.e(error);
 					listener.onError(error.toString());
 				}
-			}, "is_account_paid", username, password, OS);
+			}, "check_account_trial", username, password);
 		} else {
 			Log.e(CLIENT_ERROR_INVALID_SERVER_URL);
 			listener.onError(CLIENT_ERROR_INVALID_SERVER_URL);
@@ -352,11 +351,11 @@ public class XmlRpcHelper {
 	public boolean isTrialAccount(String username, String password) {
 		if (mXmlRpcClient != null) {
 			try {
-				Object object = mXmlRpcClient.call("is_account_paid", username, password, OS);
+				Object object = mXmlRpcClient.call("check_account_trial", username, password);
 				String result = (String)object;
 				Log.d("isTrialAccount: " + result);
 				
-				return "ERROR_TOKEN_NOT_FOUND".equals(result);
+				return "OK".equals(result);
 			} catch (XMLRPCException e) {
 				Log.e(e);
 			}
@@ -451,7 +450,7 @@ public class XmlRpcHelper {
 					Log.e(error);
 					listener.onError(error.toString());
 				}
-			}, "change_email", username, password, newEmail, OS);
+			}, "change_email", username, password, newEmail);
 		} else {
 			Log.e(CLIENT_ERROR_INVALID_SERVER_URL);
 			listener.onError(CLIENT_ERROR_INVALID_SERVER_URL);
@@ -461,7 +460,7 @@ public class XmlRpcHelper {
 	public String changeAccountEmail(String username, String password, String newEmail) {
 		if (mXmlRpcClient != null) {
 			try {
-				Object object = mXmlRpcClient.call("change_email", username, password, newEmail, OS);
+				Object object = mXmlRpcClient.call("change_email", username, password, newEmail);
 				String result = (String)object;
 				Log.d("changeAccountEmail: " + result);
 				
@@ -508,7 +507,7 @@ public class XmlRpcHelper {
 					Log.e(error);
 					listener.onError(error.toString());
 				}
-			}, "change_password", username, oldPassword, newPassword, OS);
+			}, "change_password", username, oldPassword, newPassword);
 		} else {
 			Log.e(CLIENT_ERROR_INVALID_SERVER_URL);
 			listener.onError(CLIENT_ERROR_INVALID_SERVER_URL);
@@ -518,7 +517,7 @@ public class XmlRpcHelper {
 	public String changeAccountPassword(String username, String oldPassword, String newPassword) {
 		if (mXmlRpcClient != null) {
 			try {
-				Object object = mXmlRpcClient.call("change_password", username, oldPassword, newPassword, OS);
+				Object object = mXmlRpcClient.call("change_password", username, oldPassword, newPassword);
 				String result = (String)object;
 				Log.d("changeAccountPassword: " + result);
 				
@@ -650,4 +649,61 @@ public class XmlRpcHelper {
 		}
 		return null;
 	}
+	
+	public void verifySignatureAsync(final XmlRpcListener listener, String payload, String signature) {
+		if (mXmlRpcClient != null) {
+			mXmlRpcClient.callAsync(new XMLRPCCallback() {
+				@Override
+				public void onServerError(long id, XMLRPCServerException error) {
+					Log.e(error);
+					listener.onError(error.toString());
+				}
+				
+				@Override
+				public void onResponse(long id, Object object) {
+					String result = (String)object;
+					Log.d("verifySignatureAsync: " + result);
+					
+					if (result.startsWith("ERROR_")) {
+						Log.e(result);
+						listener.onError(result);
+						return;
+					}
+					
+					listener.onSignatureVerified("OK".equals(result));
+				}
+				
+				@Override
+				public void onError(long id, XMLRPCException error) {
+					Log.e(error);
+					listener.onError(error.toString());
+				}
+			}, "verify_payload_signature", payload, signature);
+		} else {
+			Log.e(CLIENT_ERROR_INVALID_SERVER_URL);
+			listener.onError(CLIENT_ERROR_INVALID_SERVER_URL);
+		}
+	}
+	
+	public boolean verifySignature(String payload, String signature) {
+		if (mXmlRpcClient != null) {
+			try {
+				Object object = mXmlRpcClient.call("verify_payload_signature", payload, signature);
+				String result = (String)object;
+				Log.d("verifySignature: " + result);
+				
+				if (result.startsWith("ERROR_")) {
+					Log.e(result);
+					return false;
+				}
+				return "OK".equals(result);
+				
+			} catch (XMLRPCException e) {
+				Log.e(e);
+			}
+		} else {
+			Log.e(CLIENT_ERROR_INVALID_SERVER_URL);
+		}
+		return false;
+	}
 }
diff --git a/src/org/linphone/xmlrpc/XmlRpcListener.java b/src/org/linphone/xmlrpc/XmlRpcListener.java
index 8fbcd1a6a..f44543dcb 100644
--- a/src/org/linphone/xmlrpc/XmlRpcListener.java
+++ b/src/org/linphone/xmlrpc/XmlRpcListener.java
@@ -4,6 +4,7 @@ public interface XmlRpcListener {
 	public void onError(String error);
 	public void onAccountCreated(String result);
 	public void onAccountExpireFetched(String result);
+	public void onAccountExpireUpdated(String result);
 	public void onAccountActivated(String result);
 	public void onAccountActivatedFetched(boolean isActivated);
 	public void onTrialAccountFetched(boolean isTrial);
@@ -12,4 +13,5 @@ public interface XmlRpcListener {
 	public void onAccountPasswordChanged(String result);
 	public void onRecoverPasswordLinkSent(String result);
 	public void onActivateAccountLinkSent(String result);
+	public void onSignatureVerified(boolean success);
 }
diff --git a/src/org/linphone/xmlrpc/XmlRpcListenerBase.java b/src/org/linphone/xmlrpc/XmlRpcListenerBase.java
index e1752d082..94001cea7 100644
--- a/src/org/linphone/xmlrpc/XmlRpcListenerBase.java
+++ b/src/org/linphone/xmlrpc/XmlRpcListenerBase.java
@@ -66,4 +66,16 @@ public class XmlRpcListenerBase implements XmlRpcListener {
 		// TODO Auto-generated method stub
 		
 	}
+
+	@Override
+	public void onAccountExpireUpdated(String result) {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void onSignatureVerified(boolean success) {
+		// TODO Auto-generated method stub
+		
+	}
 }