1331138 Correct description of operator-facing domain names

Author: rcdun

articles/communications-gateway/deploy.md

@@ -174,7 +174,7 @@ When your resource has been provisioned, you can connect Azure Communications Ga
         1. In the search bar at the top of the page, search for your Communications Gateway resource.
         1. Go to the **Overview** page for your Azure Communications Gateway resource.
         1. In each **Service Location** section, find the **Hostname** field. You need to validate TLS connections against this hostname to ensure secure connections.
-    * We recommend configuring an SRV lookup for each region, using `_sip._tls.<regional-FQDN-from-portal>`. Replace *`<regional-FQDN-from-portal>`* with the per-region FQDNs that you found in the **Overview** page for your resource.
+    * We recommend configuring an SRV lookup for each region, using `_sip._tls.<regional-FQDN-from-portal>`. Replace *`<regional-FQDN-from-portal>`* with the per-region FQDNs from the **Hostname** fields on the **Overview** page for your resource.
 1. If your Azure Communications Gateway includes integrated MCP, configure the connection to MCP:
     1. Go to the **Overview** page for your Azure Communications Gateway resource.
     1. In each **Service Location** section, find the **MCP hostname** field.

articles/communications-gateway/reliability-communications-gateway.md

@@ -61,7 +61,7 @@ Each site in your network must:
 > [!div class="checklist"]
 > - Send traffic to its local Azure Communications Gateway service region by default.
 > - Locate Azure Communications Gateway peers within a region using DNS SRV, as outlined in RFC 3263.
->     - Make a DNS SRV lookup on the domain name for the service region, for example `r1.<deployment-id>.commsgw.azure.com`, where `<deployment-id>` is autogenerated and unique to the deployment.
+>     - Make a DNS SRV lookup on the domain name for the service region's connection to your network, for example `pstn-region1.<deployment-id>.commsgw.azure.com` (where `<deployment-id>` is autogenerated and unique to the deployment). You can find these domain names from the **Hostname** fields on the ***Overview** of your resource in the Azure portal.
 >     - If the SRV lookup returns multiple targets, use the weight and priority of each target to select a single target.
 > - Send new calls to available Azure Communications Gateway peers.