[IC3 ACS Telco Messaging Front-end ] API Review

New API Review meeting has been requested.

**Service Name**: IC3 ACS Telco Messaging Front-end
**Review Created By**: Farhad Jabiyev
**Review Date**: 10/23/2024 09:00 AM PT
**Release Plan**: [](https://web.powerapps.com/apps/821ab569-ae60-420d-8264-d7b5d5ef734c?release-plan-id=)
**PR**:
**Hero Scenarios Link**: Not Provided
**Core Concepts Doc Link**: Not Provided

**Description**: Transition of Opt Out Management API feature from Private to Public Preview stage. Api contains three endpoints:
- Check - Check if recipient number is opted out from sender
- Add - Opt out receiver nuber from sender
- Remove - Opt in receiver number to sender

Detailed meeting information and documents provided can be accessed [here](https://web.powerapps.com/apps/e41c69de-ef96-44ba-b287-0e012e7c13ae?view=edit&event=ffea07dc-ef86-ef11-ac21-000d3a3b17c7)
For more information that will help prepare you for this review, the requirements, and office hours, visit the documentation [here](https://aka.ms/azsdk/onboarding/restapischedule)

Start with the linked API review meeting details and the REST API review documentation; the issue names no repository file or test entry point. Review the requirements for the Opt Out Management API’s Check, Add, and Remove endpoints, then use the meeting materials to determine what completion of the public-preview transition requires.

Written by the indexing model from the issue text.