fixed build errors

Author: ashwinder

articles/communication-services/how-tos/call-automation-sdk/includes/redirect-inbound-telephony-calls-csharp.md

@@ -42,7 +42,7 @@ In this quick-start, you'll use Ngrok tool to project a public URI to the local
 First, determine the port of the .NET application. Minimal API dynamically allocates a port for the project at the time of creation. Find out the http port in <PROJECT_ROOT>\Properties\launchSettings.json. 
 ![Screenshot of demo application's launchsetting.json file.](../../../quickstarts/voice-video-calling/media/call-automation/dotnet-application-port.jpg)
 
-Then, install Ngrok and run Ngrok with the following command: ngrok http <port>. This command will create a public URI like https://ff2f-75-155-253-232.ngrok.io/, and it is your Ngrok Fully Qualified Domain Name(Ngrok_FQDN). Keep Ngrok running while following the rest of this quick-start.
+Then, install Ngrok and run Ngrok with the following command: ngrok http <replace_with_port>. This command will create a public URI like https://ff2f-75-155-253-232.ngrok.io/, and it is your Ngrok Fully Qualified Domain Name(Ngrok_FQDN). Keep Ngrok running while following the rest of this quick-start.
 
 ## Configure Program.cs to redirect the call
 

articles/communication-services/how-tos/call-automation-sdk/includes/redirect-inbound-telephony-calls-java.md

@@ -86,7 +86,7 @@ Then, [install Ngrok](https://ngrok.com/download) and run Ngrok with the followi
 
 In your project folder, create a Controller.java file and update it to handle incoming calls. 
 
-In this code snippet, /api/incomingCall is the default route that will be used to listen for incoming calls. At a later step, we'll register this url with Event Grid. Since Event Grid requires you to prove ownership of your Webhook endpoint before it starts delivering events to that endpoint, the code sample also handles this one time validation by processing SubscriptionValidationEvent. This requirement prevents a malicious user from flooding your endpoint with events. For more information, see this [guide](../../../../../event-grid/webhook-event-delivery.md).
+In this code snippet, /api/incomingCall is the default route that will be used to listen for incoming calls. At a later step, we'll register this url with Event Grid. Since Event Grid requires you to prove ownership of your Webhook endpoint before it starts delivering events to that endpoint, the code sample also handles this one time validation by processing SubscriptionValidationEvent. This requirement prevents a malicious user from flooding your endpoint with events. For more information, see this [guide](../../../../event-grid/webhook-event-delivery.md).
 
 ```Java
 package com.example.demo;