Allow admins to disable the announcement message for call recording for certain users Merged

We do mystery shopping for some of our clients. So we ring them and block our caller id and dont want them to know who is calling. We are paid by our clients to do this and have their permission to do this. But we cannot disable the announcement message for a group of users - it is an all or nothing setting. Can you modify so that we can create a grouping of users and set this to not have the announcement message.