来尝试一种别样的通讯体验吧。Signal 不仅提供各种常见的功能，还尤为注重隐私安全。 When you've picked to require admin acceptance just before people can be part of a contact, you will see requests to join the decision which you can approve or decrease. You may also take out men and women from calls and optionally block them within the connect with https://www-signal.com/