Snom 220 - Manual (Page 9)

Installation
9
Select “Language”
and set it to your choice, e.g. “English”.
Press ENTER
to activate your selection.
DHCP Configuration
If the network supports DHCP, then on bootup select when this
screen appears:
The phone has a built-in DHCP client. It will receive an IP address and
other network-related settings (Netmask, IP gateway, DNS server) from
the DHCP server.
If, on the other hand, DHCP is not used, select
in the screen
above. The user will subsequently be asked for the following settings.
Selecting the IP Address
The user can provide a static IP address for the phone if DHCP is not
used.