Getting Started15Connecting the Handset and Optional HeadsetNoteConnecting the PowerYou have two options for power and network connections. Your system administrator will adviseyou 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 and connectthe other end of the power adapter into an electrical power outlet.NotePower over EthernetWith the included or a regular Ethernet cable, the T41P Skype for Business phone can beThe Skype for Business phone should be used with Yealink original power adapter (5V/1.2A) only.The use of the third-party power adapter may cause the damage to the phone.EHS36 is used for connecting the phone and a compatible wireless headset. For moreinformation on how to use the EHS36, refer toYealink EHS36 User Guide.