Windows changes

Author: leejyoon

articles/communication-services/quickstarts/voice-video-calling/includes/teams-interop/teams-interop-windows.md

@@ -14,6 +14,7 @@ In this quickstart, you'll learn how to join a Teams meeting using the Azure Com
 
 - A working [Communication Services calling Windows app](../../getting-started-with-calling.md).
 - A [Teams deployment](/deployoffice/teams-install).
+- The Minimum Version supported for Teams meetingId and passcode join API : 1.7.0
 - An [access token](../../../identity/access-tokens.md).
 
 ## Add the Teams UI controls and Enable the Teams UI controls
@@ -39,14 +40,20 @@ Replace code in MainPage.xaml with following snippet. The text box will be used
             <RowDefinition Height="60*"/>
             <RowDefinition Height="16*"/>
         </Grid.RowDefinitions>
-        <TextBox Grid.Row="1" x:Name="CalleeTextBox" PlaceholderText="Who would you like to call?" TextWrapping="Wrap" VerticalAlignment="Center" Height="30" Margin="10,10,10,10" />
 
-        <Grid x:Name="AppTitleBar" Background="LightSeaGreen">
+        <Grid Grid.Row="0" x:Name="AppTitleBar" Background="LightSeaGreen">
             <!-- Width of the padding columns is set in LayoutMetricsChanged handler. -->
             <!-- Using padding columns instead of Margin ensures that the background paints the area under the caption control buttons (for transparent buttons). -->
             <TextBlock x:Name="QuickstartTitle" Text="Calling Quickstart sample title bar" Style="{StaticResource CaptionTextBlockStyle}" Padding="7,7,0,0"/>
         </Grid>
 
+        <StackPanel Grid.Row="1">
+            <TextBox x:Name="CalleeTextBox" PlaceholderText="Who would you like to call?" TextWrapping="Wrap" VerticalAlignment="Center" />
+            <TextBlock Text="or" Padding="7,7,0,0" />
+            <TextBox x:Name="CalleeMeetingId" PlaceholderText="Teams Meeting Id" TextWrapping="Wrap" VerticalAlignment="Center" />
+            <TextBox x:Name="CalleeMeetingPasscode" PlaceholderText="Teams Meeting Passcode" TextWrapping="Wrap" VerticalAlignment="Center" />
+        </StackPanel>
+
         <Grid Grid.Row="2">
             <Grid.RowDefinitions>
                 <RowDefinition/>
@@ -121,11 +128,17 @@ namespace CallingQuickstart
         private async void CallButton_Click(object sender, RoutedEventArgs e)
         {
             var callString = CalleeTextBox.Text.Trim();
+            var meetingId = CalleeMeetingId.Text.Trim();
+            var passcode = CalleeMeetingPasscode.Text.Trim();
 
             if (!string.IsNullOrEmpty(callString))
             {
                 call = await JoinTeamsMeetingByLinkAsync(teamsMeetinglink);
             }
+            else if (!string.IsNullOrEmpty(meetingId) && !string.IsNullOrEmpty(passcode))
+            {
+                call = await JoinTeamsMeetingByMeetingIdAsync(meetingId, passcode);
+            }
 
             if (call != null)
             {
@@ -333,6 +346,15 @@ namespace CallingQuickstart
             return call;
         }
 
+        private async Task<CommunicationCall> JoinTeamsMeetingByMeetingIdAsync(String meetingId, String passcode)
+        {
+            var joinCallOptions = GetJoinCallOptions();
+
+            var teamsMeetingIdLocator = new TeamsMeetingIdLocator(meetingId, passcode);
+            var call = await callAgent.JoinAsync(teamsMeetingIdLocator, joinCallOptions);
+            return call;
+        }
+
         private JoinCallOptions GetJoinCallOptions()
         {
             return new JoinCallOptions() {
@@ -351,6 +373,11 @@ namespace CallingQuickstart
 The Teams meeting link can be retrieved using Graph APIs. This is detailed in [Graph documentation](/graph/api/onlinemeeting-createorget?tabs=http&view=graph-rest-beta&preserve-view=true).
 The Communication Services Calling SDK accepts a full Teams meeting link. This link is returned as part of the `onlineMeeting` resource, accessible under the [`joinWebUrl` property](/graph/api/resources/onlinemeeting?view=graph-rest-beta&preserve-view=true). You can also get the required meeting information from the **Join Meeting** URL in the Teams meeting invite itself.
 
+## Get the Teams meeting ID and passcode
+* Graph API: Use Graph API to retrieve information about onlineMeeting resource and check the object in property joinMeetingIdSettings.
+* Teams: In your Teams application, go to Calendar app and open details of a meeting. Online meetings have meeting ID and passcode in the definition of the meeting.
+* Outlook: You can find the meeting ID & passcode in calendar events or in email meeting invites.
+
 ## Launch the app and join Teams meeting
 
 You can build and run your app on Visual Studio by selecting **Debug** > **Start Debugging** or by using the (F5) keyboard shortcut.