Snom 320 - Manual (Page 26)

26 • Logon
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To change the outgoing identity from the idle screen, use the
function key “Reg” to access the fi rst registration, then move through the
currently registered lines as described above.
Challenge/Authentication
In SIP, a user can set up authentication requirements for each
registration on the phone. The password for each account name is set up
via the web interface of the phone on the confi guration pages for Lines
1-12, index card ‘Login Information’.
If the authentication password is not set, or is set wrongly, the
account will not register on that domain and the phone will be challenged
for that line. A challenge response will ask for the correct password. This
may look like the following:
The default mode for password input is integer. You can switch
to alphanumeric input by pressing the asterisk key “*”. The password is
replaced by a series of ‘*’s to keep it hidden from prying eyes.
Repeat this procedure for all accounts with authentication. The
challenge responses are stored in the phone and will be used at re-
registration or upon reboot. You can also edit this information via the
web interface.