1. A local exchange carrier (LEC) is entitled to ___ a local phone number when a customer decides to bring it from another carrier.

A. Translate

B. Block

C. Port

D. Sell

2. The call on hold feature or button of an SIP phone will trigger a(n)___ message to change the state of the existing VoIP media session.

A. re-INV (i.e., new INVITE request)

B. cancel (CAN)

C. update (UP)

D. goodbye (BYE)