To activate Call Forwarding, you use a special code to activate the feature. Then you enter the phone number to which you want your calls forwarded. ALL calls are then forwarded to that number. This feature is sometimes called "unconditional call forwarding."
You will hear a short ring each time a call is forwarded.
You can still make outgoing calls while Call Forwarding is active. However, because they get transferred so fast, you can't answer incoming calls (or stop them from being forwarded). If you want to do that, use Selective Call Forwarding to send specific calls to another number.
The number receiving your forwarded calls rings normally.
If you forward calls to a long distance (or toll) number, you'll be charged applicable rates.