Snom 220 - Manual (Page 61)

Settings
61
Setup Update
MANUAL SOFTWARE UPDATE
Here you can select the binary files to be put on the phone yourself.
This section may look like:
Bootloader
Specify the address for the bootloader file you would like to place on the
phone through this setting.
Firmware
Similarly, you can provide the firmware address in this setting.
Press the “Load” button if you changed anything in these settings and
would like to load the binary files through the newly provided addresses.
H.323
This mode of settings will be available to you if your phone is operating
in H.323 mode.
E.164 Number
Set the E.164 number by which you would like to identify your phone.
H.323 ID
Alternatively, you can specify the H.323 ID for your phone.
URL ID
Set the H.323 ID in the form of an URL through this setting.
GK/GW Mode
Through the GK/GW Mode setting, the user has an option to select the
mode for the registrar to either “Auto”, “Gatekeeper”, “Gateway” or
“None”.
GK/GW Domain
Specify the DNS or IP address of the Gatekeeper or Gateway with which
you would like your phone to register.