Fix validation and grammar

Author: vac0224

articles/communication-services/whats-new.md

@@ -19,7 +19,7 @@ This article describes new features and updates related to Azure Communication S
 
 ### Teams Phone extensibility
 
-Introducing Teams Phone extensibility in public preview. Teams Phone extensibility (TPE) for Dynamics 365 Contact Center and contact center as a service (CCaaS) ISV solutions helps organizations extend their telephony investment with Teams Phone into the contact center. 
+Introducing Teams Phone extensibility in public preview. Teams Phone extensibility (TPE) for Dynamics 365 Contact Center and contact center as a service (CCaaS) ISV solution helps organizations extend their telephony investment with Teams Phone into the contact center. 
 
 With generative AI, Contact Center as a Service (CCaaS) providers can easily advise human agents so they’re responsive to customer needs, can automate workflows, and ultimately improve the overall customer experience.
 
@@ -50,7 +50,7 @@ Teams Phone extensibility, which is powered by Azure Communication Services, ena
 - **Integrate with Call Automation:** Azure Communication Services [Call Automation APIs](concepts/call-automation/call-automation.md) provide call control and enable CCaaS providers to build server-based and intelligent call flows.
 - **Use the Client SDK:** Azure Communication Services [Client SDK](concepts/voice-video-calling/calling-sdk-features.md) provides the means for a CCaaS provider to develop a custom client for CCaaS persona workflows.
 - **Emergency Calling:** Powered by Azure Communication Services [Calling SDK](concepts/voice-video-calling/calling-sdk-features.md), we bring enhanced emergency calling support for agents who can dial emergency services, provide their static location, and receive callbacks from public safety answering points with Teams Phone service numbers.
-- **Billing:** The Teams Phone extensibility business model charges CCaaS vendors for using Azure Communication Services SDKs, including Calling SDK, VoIP consumption, Audio Insights, and Call Recording, while end users must use Teams Calling Plans and enable necessary Teams licenses for agents and resource accounts. For more information, see [Azure Communication Services pricing](https://azure.microsoft.com/en-us/pricing/details/communication-services/?msockid=29591b22ce2367e3338a0afdcfe86647).
+- **Billing:** The Teams Phone extensibility business model charges CCaaS vendors for using Azure Communication Services SDKs, including Calling SDK, VoIP consumption, Audio Insights, and Call Recording, while end users must use Teams Calling Plans and enable necessary Teams licenses for agents and resource accounts. For more information, see [Azure Communication Services pricing](https://azure.microsoft.com/pricing/details/communication-services/?msockid=29591b22ce2367e3338a0afdcfe86647).
 - **Telemetry:** Developers and CCaaS providers can access calling details and logging tools as part of the Teams Phone extensibility. Telemetry enables developers and system admins to monitor call use and debug call quality from the Azure portal either. They can do this by analyzing the Call Summary and Call Diagnostic Logs with a clear Team Phone Extensibility identifier or using the [Call Diagnostic Center](concepts/voice-video-calling/call-diagnostics.md).
 
 :::image type="content" source="media/whats-new-images/teams-phone-extensibility-using-call-automation.png" alt-text="A diagram showing the Azure Communication Services Call automation API enabling your application to integrate Teams Phone and Azure AI Speech.":::
@@ -62,7 +62,7 @@ Teams Phone extensibility, which is powered by Azure Communication Services, ena
 #### Next steps
 
 - [Teams Phone extensibility overview](concepts/interop/tpe/teams-phone-extensibility-overview.md)
-- [Teams Phone System extensibility quickstart](quickstart/tpe/teams-phone-extensibility-quickstart.md)
+- [Teams Phone System extensibility quickstart](quickstarts/tpe/teams-phone-extensibility-quickstart.md)
 
 ## May 2025