Remove refs to AOCP

Author: aspreadbury

articles/communications-gateway/role-in-network.md

@@ -68,7 +68,7 @@ To allow Azure Communications Gateway to identify the correct service for a call
 - Required for Microsoft Teams Direct Routing and Zoom Phone Cloud Peering.
 - Not required for Operator Connect (because Azure Communications Gateway defaults to Operator Connect for fixed line calls) or Teams Phone Mobile.
 
-You can also configure Azure Communications Gateway to add a custom header to messages associated with a number. You can use this feature to indicate the service and/or the enterprise associated with a call. This feature is available for all communications services except Azure Operator Call Protection Preview and Teams Phone Mobile.
+You can also configure Azure Communications Gateway to add a custom header to messages associated with a number. You can use this feature to indicate the service and/or the enterprise associated with a call. This feature is available for all communications services except Teams Phone Mobile.
 
 This configuration requires you to use Azure Communication Gateway's browser-based Number Management Portal (preview) or the [Provisioning API (preview)](provisioning-platform.md).