Merge pull request #242246 from rcdun/kitkoeneman/acg-always-on-synthetic-traffic

ACG uses synthetic always-on traffic to monitor deployment health

Author: prmerger-automator[bot]

articles/communications-gateway/prepare-for-live-traffic.md

@@ -199,6 +199,8 @@ If you don't have the API Bridge, you must provide your onboarding team with pro
 
 Your onboarding team must arrange synthetic testing of your deployment. This synthetic testing is a series of automated tests lasting at least seven days. It verifies the most important metrics for quality of service and availability.
 
+After launch, synthetic traffic will be sent through your deployment using your test numbers. This traffic is used to continuously check the health of your deployment.
+
 ## 11. Schedule launch
 
 Your launch date is the date that you'll appear to enterprises in the Teams Admin Center. Your onboarding team must arrange this date by making a request to Microsoft Teams.

articles/communications-gateway/prepare-to-deploy.md

@@ -24,9 +24,11 @@ You must own globally routable numbers that you can use for testing, as follows.
 
 |Type of testing|Numbers required |
 |---------|---------|
-|Automated validation testing by Microsoft Teams test suites|Minimum: 3. Recommended: 6 (to run tests simultaneously).|
+|Automated validation testing by Microsoft Teams test suites|Minimum: 6. Recommended: 9 (to run tests simultaneously).|
 |Manual test calls made by you and/or Microsoft staff during integration testing |Minimum: 1|
 
+After deployment, the automated validation testing numbers use synthetic traffic to continuously check the health of your deployment.
+
 We strongly recommend that you have a support plan that includes technical support, such as [Microsoft Unified Support](https://www.microsoft.com/en-us/unifiedsupport/overview) or [Premier Support](https://www.microsoft.com/en-us/unifiedsupport/premier).
 
 ## 1. Add the Project Synergy application to your Azure tenancy
@@ -133,7 +135,7 @@ Collect all of the values in the following table for all the test lines that you
  |The purpose of the test line: **Manual** (for manual test calls by you and/or Microsoft staff during integration testing) or **Automated** (for automated validation with Microsoft Teams test suites).|**Testing purpose**|
 
 > [!IMPORTANT]
-> You must configure at least three automated test lines. We recommend six automated test lines (to allow simultaneous tests).
+> You must configure at least six automated test lines. We recommend nine automated test lines (to allow simultaneous tests).
 
 ## 7. Decide if you want tags