Yealink SIP-T21 E2 User Manual page 28

User Guide for the SIP-T21(P) E2 IP Phone
The phone status is displayed on the first page of the web user interface.
If your phone cannot contact a DHCP server for any reason, you need to configure
network settings manually. The IP phone can support either or both IPv4 and IPv6
addresses.
To configure the IP mode via phone user interface:
1. Press Menu->Settings->Advanced Settings (default password: admin)
->Network->WAN Port.
2. Press
3. Press the Save soft key to accept the change or the Back soft key to cancel.
You can configure a static IPv4 address for the IP phone. Before configuring it, make sure
that the IP mode is configured as IPv4 or IPv4 & IPv6.
To configure a static IPv4 address via phone user interface:
1. Press Menu->Settings->Advanced Settings (default password: admin)
->Network->WAN Port.
2. Press
18
or to select IPv4, IPv6 or IPv4 & IPv6 from the IP Mode field.
to select the IPv4 and then press the Enter soft key.