improve readme (#190)

CallAutomation_AzOpenAI_Voice/CallAutomation_AzOpenAI_Voice/Program.cs

@@ -53,7 +53,7 @@
         var callbackUri = new Uri(new Uri(appBaseUrl), $"/api/callbacks/{Guid.NewGuid()}?callerId={callerId}");
         logger.LogInformation($"Callback Url: {callbackUri}");
         var websocketUri = appBaseUrl.Replace("https", "wss") + "/ws";
-        logger.LogInformation($"WebSocket Url: {callbackUri}");
+        logger.LogInformation($"WebSocket Url: {websocketUri}");
 
         var mediaStreamingOptions = new MediaStreamingOptions(
                 new Uri(websocketUri),

CallAutomation_AzOpenAI_Voice/README.md

@@ -16,9 +16,9 @@ This is a sample application demonstrated during Microsoft Ignite 2024. It highl
 - Create an Azure account with an active subscription. For details, see [Create an account for free](https://azure.microsoft.com/free/)
 - Create an Azure Communication Services resource. For details, see [Create an Azure Communication Resource](https://docs.microsoft.com/azure/communication-services/quickstarts/create-communication-resource). You'll need to record your resource **connection string** for this sample.
 - An Calling-enabled telephone number. [Get a phone number](https://learn.microsoft.com/en-us/azure/communication-services/quickstarts/telephony/get-phone-number?tabs=windows&pivots=platform-azp).
-- Azure Dev Tunnels CLI. For details, see  [Enable dev tunnel](https://docs.tunnels.api.visualstudio.com/cli)
-- An Azure OpenAI Resource and Deployed Model. See [instructions](https://learn.microsoft.com/en-us/azure/cognitive-services/openai/how-to/create-resource?pivots=web-portal).
-
+- Azure Dev Tunnels CLI. For details, see  [Enable dev tunnel](https://learn.microsoft.com/en-us/azure/developer/dev-tunnels/get-started?tabs=windows)
+- Azure OpenAI Resource: Set up an Azure OpenAI resource by following the instructions in [Create and deploy an Azure OpenAI Service resource.](https://learn.microsoft.com/en-us/azure/ai-services/openai/how-to/create-resource?pivots=web-portal).
+- Azure OpenAI Service Model: To use this sample, you must have the GPT-4o-Realtime-Preview model deployed. Follow the instructions at [GPT-4o Realtime API for speech and audio (Preview)](https://learn.microsoft.com/en-us/azure/ai-services/openai/realtime-audio-quickstart?tabs=keyless%2Cwindows&pivots=ai-foundry-portal) to set it up. 
 
 ## Setup Instructions
 
@@ -39,9 +39,9 @@ Open the appsettings.json file to configure the following settings:
 
     - `DevTunnelUri`: your dev tunnel endpoint
     - `AcsConnectionString`: Azure Communication Service resource's connection string.
-    - `AzureOpenAIServiceKey`: Open AI's Service Key
-    - `AzureOpenAIServiceEndpoint`: Open AI's Service Endpoint
-    - `AzureOpenAIDeploymentModelName`: Open AI's Model name
+    - `AzureOpenAIServiceKey`: Open AI's Service Key. Refer to prerequisites section.
+    - `AzureOpenAIServiceEndpoint`: Open AI's Service Endpoint. Refer to prerequisites section.
+    - `AzureOpenAIDeploymentModelName`: Open AI's Model name. Refer to prerequisites section.
 
 ## Running the application