Some recipients subscribe to a service that automatically rejects calls with a blocked number. If you call such a line, you will hear a recording: "We do not accept anonymous calls. Please unblock your number and call again." To bypass this, use *82 (if you have permanent blocking) or simply not block the call.

To block your number from caller ID on US Cellular, you can use a simple code. Here's how:

US Cellular supports both mechanisms, albeit with specific implementation details.