Which protocol is used by a Cisco PoE switch to deliver voice VLAN information to a Cisco IP phone?
A. Cisco Discovery Protocol
B. User Datagram Protocol
C. Transmission Control Protocol
D. Session Initiation Protocol
Which protocol is used by a Cisco PoE switch to deliver voice VLAN information to a Cisco IP phone?
A. Cisco Discovery Protocol
B. User Datagram Protocol
C. Transmission Control Protocol
D. Session Initiation Protocol