fixed warnings

Author: Prakulka

articles/communication-services/concepts/sms/program-brief-guidelines.md

@@ -188,7 +188,7 @@ In this field, you are required to provide a sample of the response message that
 
 **Example:** Contoso Appointment reminders: You’re opted out and will receive no further messages.
 
-Please see our [guide on opt-outs](./sms-faq.md#how-does-azure-communication-services-handle-optouts-for-toll-free-numbers) to learn about how Azure Communication Services handles opt-outs.
+Please see our [guide on opt-outs](./sms-faq.md#opt-out-handling) to learn about how Azure Communication Services handles opt-outs.
 
 ### Example messages
 Message senders are required to disclose all the types/categories of messages with samples that will be sent over the short code.

articles/communication-services/concepts/sms/sms-faq.md

@@ -105,7 +105,7 @@ Once you have submitted the short code program brief application in the Azure po
     - Special characters: *+* , *-* ,  _ , &
 
 ### Is a number purchase required to use alphanumeric sender ID?
-The use of alphanumeric sender ID does not require purchase of any phone number. Alphanumeric sender ID can be enabled through the Azure portal. See [enable alphanumeric sender ID quickstart](../../quickstarts/sms/enable-alphanumeric-senderID.md) for instructions.
+The use of alphanumeric sender ID does not require purchase of any phone number. Alphanumeric sender ID can be enabled through the Azure portal. See [enable alphanumeric sender ID quickstart](../../quickstarts/sms/enable-alphanumeric-sender-id.md) for instructions.
 
 ### Can I send SMS immediately after enabling alphanumeric sender ID?
 We recommend waiting for 10 minutes before you start sending messages for best results.

articles/communication-services/quickstarts/sms/enable-alphanumeric-sender-id.md

@@ -24,7 +24,7 @@ ms.custom: mode-other
 ## Alphanumeric sender ID
 To enable alphanumeric sender ID, go to your Communication Services resource on the [Azure portal](https://portal.azure.com).
 
-:::image type="content" source="./media/enable-alphanumeric-senderid/manage-phone-azure-portal-start-1.png"alt-text="Screenshot showing a Communication Services resource's main page.":::
+:::image type="content" source="./media/enable-alphanumeric-sender-id/manage-phone-azure-portal-start-1.png"alt-text="Screenshot showing a Communication Services resource's main page.":::
 
 ## Enable alphanumeric sender ID
 Navigate to the Alphanumeric Sender ID blade in the resource menu and click on "Enable Alphanumeric Sender ID" button to enable alphanumeric sender ID service. If the enable button is not available for your subscription and your [subscription address](../../concepts/numbers/sub-eligibility-number-capability.md) is supported for alphanumeric sender ID, [create a support ticket](https://aka.ms/ACS-Support).