Update readme.md

CallAutomation_OutboundCalling/readme.md

@@ -16,6 +16,7 @@ In this quickstart, we cover how you can use Call Automation SDK to make an outb
 - 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 will need to record your resource **connection string** for this sample.
 - Get a phone number for your new Azure Communication Services resource. For details, see [Get a phone number](https://learn.microsoft.com/en-us/azure/communication-services/quickstarts/telephony/get-phone-number?tabs=windows&pivots=programming-language-csharp)
 - Create Azure AI Multi Service resource. For details, see [Create an Azure AI Multi service](https://learn.microsoft.com/en-us/azure/cognitive-services/cognitive-services-apis-create-account).
+- Connect your Azure Communication Services resource to the Azure AI Multi Service resource. For detals, see [Connect Azure Communication Services to Azure AI services](https://learn.microsoft.com/en-us/azure/communication-services/concepts/call-automation/azure-communication-services-azure-cognitive-services-integration)
 - Create and host a Azure Dev Tunnel. Instructions [here](https://learn.microsoft.com/en-us/azure/developer/dev-tunnels/get-started)
 - [.NET7 Framework](https://dotnet.microsoft.com/en-us/download/dotnet/7.0) (Make sure to install version that corresponds with your visual studio instance, 32 vs 64 bit)
 - (Optional) A Microsoft Teams user with a phone license that is `voice` enabled. Teams phone license is required to add Teams users to the call. Learn more about Teams licenses [here](https://www.microsoft.com/microsoft-teams/compare-microsoft-teams-bundle-options).  Learn about enabling phone system with `voice` [here](https://learn.microsoft.com/microsoftteams/setting-up-your-phone-system).   You also need to complete the prerequisite step [Authorization for your Azure Communication Services Resource](https://learn.microsoft.com/azure/communication-services/how-tos/call-automation/teams-interop-call-automation?pivots=programming-language-javascript#step-1-authorization-for-your-azure-communication-services-resource-to-enable-calling-to-microsoft-teams-users) to enable calling to Microsoft Teams users.