Yealink T42S - Page 5

Connect Cables
Please follow the diagram to install your phone. Once plugged in, the
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The voicemail box will be functional with a default greeting.
PC Connection (Optional)
Power
Adapter
(DC 5V)
AC Power
Option
PoE (Power over
Ethernet) Option
PC Connection
(Optional)
IEEE 802.3af compliant
PoE Hub/Switch
3