Yealink SIP-T21 E2 Quick Start Manual page 3

3.Connect the network and power, as shown below :
You have two options for network and power connections. Your system administrator will advise you on which one to use.
Note: PoE is applicable to the SIP-T21P E2 IP phone. If inline power (PoE) is provided, you do not need to
connect the power adapter. Make sure the hub/switch is PoE-compliant.
Startup
After the IP phone is connected to the network and
supplied with power, it automatically begins the
initialization process. After startup, the phone is ready
for use. You can configure the phone via phone user
interface or web user interfafce.
A
AC Power Option
B
PoE ( Power over
Ethernet ) Option
IEEE 802.3af compliant
PoE Hub/Switch
Power Adapter
(DC 5V)
Welcome
Initializing... please wait
PC Connection
(Optional)
PC Connection
(Optional)
2