User Guide SIP-T22P IP Phone142) Connect the Handset and optional Headset:Note3) Connect the Network and Power:You have two options for power and network connections. Your system administrator willadvise you which one to use. AC power Power over Ethernet (PoE)AC PowerTo connect the AC power:1. Connect the DC plug on the power adapter to the DC5V port on the phone andconnect the other end of the power adapter into an electrical power outlet.2. Connect the supplied Ethernet cable between the Internet port on the phone andthe Internet port in your network or switch/hub device port.Power over EthernetUsing a regular Ethernet cable, the SIP-T22P IP phone can be powered from a PoE (IEEE802.3af) compliant switch or hub.A headset is not provided in the packaging contents. Contact your system administratorfor more information.