diff --git a/samples/VoicemailProviderDemo/src/com/example/android/provider/VoicemailContract.java b/samples/VoicemailProviderDemo/src/com/example/android/provider/VoicemailContract.java
index c07579b..3fe6cc8 100644
--- a/samples/VoicemailProviderDemo/src/com/example/android/provider/VoicemailContract.java
+++ b/samples/VoicemailProviderDemo/src/com/example/android/provider/VoicemailContract.java
@@ -59,13 +59,23 @@
 
     /** The authority used by the voicemail provider. */
     public static final String AUTHORITY = "com.android.voicemail";
-
-    /** URI to insert/retrieve all voicemails. */
+    /**
+     * URI to insert/retrieve all voicemails.
+     * @deprecated
+     */
     public static final Uri CONTENT_URI =
             Uri.parse("content://" + AUTHORITY + "/voicemail");
-    /** URI to insert/retrieve voicemails by a given voicemail source. */
+    /**
+     * URI to insert/retrieve voicemails by a given voicemail source.
+     * @deprecated
+     */
     public static final Uri CONTENT_URI_SOURCE =
             Uri.parse("content://" + AUTHORITY + "/voicemail/source/");
+    /**
+     * Parameter key used in the URI to specify the voicemail source package name.
+     * <p> This field must be set in all requests that originate from a voicemail source.
+     */
+    public static final String PARAM_KEY_SOURCE_PACKAGE = "source_package";
 
     // TODO: Move ACTION_NEW_VOICEMAIL to the Intent class.
     /** Broadcast intent when a new voicemail record is inserted. */
@@ -77,15 +87,27 @@
      */
     public static final String EXTRA_SELF_CHANGE = "com.android.voicemail.extra.SELF_CHANGE";
 
-    /** The mime type for a collection of voicemails. */
-    public static final String DIR_TYPE =
-            "vnd.android.cursor.dir/voicemails";
+    /**
+     * The mime type for a collection of voicemails.
+     * @deprecated */
+    public static final String DIR_TYPE = "vnd.android.cursor.dir/voicemails";
 
+    /** Defines fields exposed through the /voicemail path of this content provider. */
     public static final class Voicemails implements BaseColumns {
         /** Not instantiable. */
         private Voicemails() {
         }
 
+        /** URI to insert/retrieve voicemails by a given voicemail source. */
+        public static final Uri CONTENT_URI =
+            Uri.parse("content://" + AUTHORITY + "/voicemail");
+        /** URI to insert/retrieve voicemails by a given voicemail source. */
+        public static final Uri CONTENT_URI_SOURCE =
+                Uri.parse("content://" + AUTHORITY + "/voicemail/source/");
+
+        /** The mime type for a collection of voicemails. */
+        public static final String DIR_TYPE = "vnd.android.cursor.dir/voicemails";
+
         /**
          * Phone number of the voicemail sender.
          * <P>Type: TEXT</P>
@@ -149,5 +171,101 @@
          * @hide
          */
         public static final String _DATA = "_data";
+
+        /**
+         * A convenience method to build voicemail URI specific to a source package by appending
+         * {@link VoicemailContract#PARAM_KEY_SOURCE_PACKAGE} param to the base URI.
+         */
+        public static Uri buildSourceUri(String packageName) {
+            return Voicemails.CONTENT_URI.buildUpon()
+                    .appendQueryParameter(PARAM_KEY_SOURCE_PACKAGE, packageName).build();
+        }
+    }
+
+    /** Defines fields exposed through the /status path of this content provider. */
+    public static final class Status implements BaseColumns {
+        /** URI to insert/retrieve status of voicemail source. */
+        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/status");
+        /** The mime type for a collection of voicemail source statuses. */
+        public static final String DIR_TYPE = "vnd.android.cursor.dir/voicemail.source.status";
+        /** The mime type for a collection of voicemails. */
+        public static final String ITEM_TYPE = "vnd.android.cursor.item/voicemail.source.status";
+
+        /** Not instantiable. */
+        private Status() {
+        }
+        /**
+         * The package name of the voicemail source. There can only be a one entry per source.
+         * <P>Type: TEXT</P>
+         */
+        public static final String SOURCE_PACKAGE = "source_package";
+        /**
+         * The URI to call to invoke source specific voicemail settings screen. On a user request
+         * to setup voicemail an intent with action VIEW with this URI will be fired by the system.
+         * <P>Type: TEXT</P>
+         */
+        public static final String SETTINGS_URI = "settings_uri";
+        /**
+         * The URI to call when the user requests to directly access the voicemail from the remote
+         * server. In case of an IVR voicemail system this is typically set to the the voicemail
+         * number specified using a tel:/ URI.
+         * <P>Type: TEXT</P>
+         */
+        public static final String VOICEMAIL_ACCESS_URI = "voicemail_access_uri";
+        /**
+         * The configuration state of the voicemail source.
+         * <P> Possible values:
+         * {@link #CONFIGURATION_STATE_OK},
+         * {@link #CONFIGURATION_STATE_NOT_CONFIGURED},
+         * {@link #CONFIGURATION_STATE_CAN_BE_CONFIGURED}
+         * <P>Type: INTEGER</P>
+         */
+        public static final String CONFIGURATION_STATE = "configuration_state";
+        public static final int CONFIGURATION_STATE_OK = 0;
+        public static final int CONFIGURATION_STATE_NOT_CONFIGURED = 1;
+        /**
+         * This state must be used when the source has verified that the current user can be
+         * upgraded to visual voicemail and would like to show a set up invitation message.
+         */
+        public static final int CONFIGURATION_STATE_CAN_BE_CONFIGURED = 2;
+        /**
+         * The data channel state of the voicemail source. This the channel through which the source
+         * pulls voicemail data from a remote server.
+         * <P> Possible values:
+         * {@link #DATA_CHANNEL_STATE_OK},
+         * {@link #DATA_CHANNEL_STATE_NO_CONNECTION}
+         * </P>
+         * <P>Type: INTEGER</P>
+         */
+        public static final String DATA_CHANNEL_STATE = "data_channel_state";
+        public static final int DATA_CHANNEL_STATE_OK = 0;
+        public static final int DATA_CHANNEL_STATE_NO_CONNECTION = 1;
+        /**
+         * The notification channel state of the voicemail source. This is the channel through which
+         * the source gets notified of new voicemails on the remote server.
+         * <P> Possible values:
+         * {@link #NOTIFICATION_CHANNEL_STATE_OK},
+         * {@link #NOTIFICATION_CHANNEL_STATE_NO_CONNECTION},
+         * {@link #NOTIFICATION_CHANNEL_STATE_MESSAGE_WAITING}
+         * </P>
+         * <P>Type: INTEGER</P>
+         */
+        public static final String NOTIFICATION_CHANNEL_STATE = "notification_channel_state";
+        public static final int NOTIFICATION_CHANNEL_STATE_OK = 0;
+        public static final int NOTIFICATION_CHANNEL_STATE_NO_CONNECTION = 1;
+        /**
+         * Use this state when the notification can only tell that there are pending messages on
+         * the server but no details of the sender/time etc are known.
+         */
+        public static final int NOTIFICATION_CHANNEL_STATE_MESSAGE_WAITING = 2;
+
+        /**
+         * A convenience method to build status URI specific to a source package by appending
+         * {@link VoicemailContract#PARAM_KEY_SOURCE_PACKAGE} param to the base URI.
+         */
+        public static Uri buildSourceUri(String packageName) {
+            return Status.CONTENT_URI.buildUpon()
+                    .appendQueryParameter(PARAM_KEY_SOURCE_PACKAGE, packageName).build();
+        }
     }
 }
diff --git a/samples/VoicemailProviderDemo/src/com/example/android/voicemail/common/core/VoicemailProviderHelpers.java b/samples/VoicemailProviderDemo/src/com/example/android/voicemail/common/core/VoicemailProviderHelpers.java
index cbcf86b..2d8d9bc 100644
--- a/samples/VoicemailProviderDemo/src/com/example/android/voicemail/common/core/VoicemailProviderHelpers.java
+++ b/samples/VoicemailProviderDemo/src/com/example/android/voicemail/common/core/VoicemailProviderHelpers.java
@@ -16,7 +16,6 @@
 
 package com.example.android.voicemail.common.core;
 
-import com.example.android.provider.VoicemailContract;
 import com.example.android.provider.VoicemailContract.Voicemails;
 import com.example.android.voicemail.common.logging.Logger;
 import com.example.android.voicemail.common.utils.CloseUtils;
@@ -76,8 +75,7 @@
      * <code>com.android.providers.voicemail.permission.READ_WRITE_OWN_VOICEMAIL</code>.
      */
     public static VoicemailProviderHelper createFullVoicemailProvider(Context context) {
-        return new VoicemailProviderHelpers(VoicemailContract.CONTENT_URI,
-                context.getContentResolver());
+        return new VoicemailProviderHelpers(Voicemails.CONTENT_URI, context.getContentResolver());
     }
 
     /**
@@ -88,9 +86,8 @@
      * <code>com.android.providers.voicemail.permission.READ_WRITE_OWN_VOICEMAIL</code>.
      */
     public static VoicemailProviderHelper createPackageScopedVoicemailProvider(Context context) {
-        Uri providerUri = Uri.withAppendedPath(VoicemailContract.CONTENT_URI_SOURCE,
-                context.getPackageName());
-        return new VoicemailProviderHelpers(providerUri, context.getContentResolver());
+        return new VoicemailProviderHelpers(Voicemails.buildSourceUri(context.getPackageName()),
+                context.getContentResolver());
     }
 
     @Override
@@ -241,8 +238,6 @@
         long id = cursor.getLong(cursor.getColumnIndexOrThrow(Voicemails._ID));
         String sourcePackage = cursor.getString(
                 cursor.getColumnIndexOrThrow(Voicemails.SOURCE_PACKAGE));
-        Uri voicemailUri = ContentUris.withAppendedId(
-                Uri.withAppendedPath(VoicemailContract.CONTENT_URI_SOURCE, sourcePackage), id);
         VoicemailImpl voicemail = VoicemailImpl
                 .createEmptyBuilder()
                 .setTimestamp(cursor.getLong(cursor.getColumnIndexOrThrow(Voicemails.DATE)))
@@ -252,7 +247,7 @@
                 .setSourcePackage(sourcePackage)
                 .setSourceData(cursor.getString(
                         cursor.getColumnIndexOrThrow(Voicemails.SOURCE_DATA)))
-                .setUri(voicemailUri)
+                .setUri(buildUriWithSourcePackage(id, sourcePackage))
                 .setHasContent(cursor.getInt(
                         cursor.getColumnIndexOrThrow(Voicemails.HAS_CONTENT)) == 1)
                 .setIsRead(cursor.getInt(cursor.getColumnIndexOrThrow(Voicemails.NEW)) == 1)
@@ -262,6 +257,10 @@
         return voicemail;
     }
 
+    private Uri buildUriWithSourcePackage(long id, String sourcePackage) {
+        return ContentUris.withAppendedId(Voicemails.buildSourceUri(sourcePackage), id);
+    }
+
     private Voicemail.Mailbox mapValueToMailBoxEnum(int value) {
         for (Voicemail.Mailbox mailbox : Voicemail.Mailbox.values()) {
             if (mailbox.getValue() == value) {