Update teams-phone-extensibility-troubleshooting.md

Author: Carolyn135

articles/communication-services/concepts/interop/tpe/teams-phone-extensibility-troubleshooting.md

@@ -93,7 +93,7 @@ Log in with your **admin credentials**: [https://admin.microsoft.com](https://ad
   - Search for **Microsoft Teams Calling Plan (Pay-As-You-Go)**.
   - Select the appropriate **Pay-As-You-Go Calling Plan Zone (Zone 1 or Zone 2)** based on your location.
   - Add the plan under **Add-ons**.  
-  More details: [Learn more about Calling Plans PAYG](/microsoftteams/calling-plans-for-office-365#pay-as-you-go-calling-plan)
+  More details: [Learn more about Calling Plans pay-as-you-go](/microsoftteams/calling-plans-for-office-365#pay-as-you-go-calling-plan)
 
 - For **older agreements**:
   - Navigate to **Marketplace → All Products** and purchase **Communications Credits**.