Update articles/communication-services/concepts/telephony/prevent_spam_flag.md

Co-authored-by: Victor Chapel <[email protected]>

Author: henikaraa

articles/communication-services/concepts/telephony/prevent_spam_flag.md

@@ -1,7 +1,7 @@
 ---
 title: Prevent phone numbers from being flagged as spam
 titleSuffix: An Azure Communication Services article
-description: Learn about Communication Services recommendations.
+description: This article describes how to prevent business phone numbers from being flagged as spam.
 author: henikaraa
 manager: ankura
 services: azure-communication-services