Anonymous call rejection:
1. Dial *77 to Enable
Dial *87 to Disable.
2. Listen for a confirmation message.
Caller ID:
1. Dial *68 to permanently enable outbound caller ID block.
Dial *81 to permanently disable outbound caller ID block.
2. Dial *67 and the 10-digit phone number to enable outbound caller ID block for one call.
Dial *82 and the 10-digit phone number to disable outbound caller ID block for one call.
3. Listen for the confirmation message.