Yealink SIP-T54S Administrator's Manual page 956

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
Features->Phone Lock->Emergency
Phone User Interface:
None
Phone Lock Type
The following table lists the operation behavior when configuring the type of phone lock:
Idle screen
Incoming
call
930
Parameters
All Keys
Allow Behavior: You are allowed to press
the desired Line Key (key type is Line) or
the Speakerphone key to enter the
dialing screen.
Keys not Locked: Line keys (key type is
Line), digit keys, HEADSET key, Volume
key, Speakerphone key, off-hook key and
on-hook key.
Note: Line key is not applicable to SIP-
T19(P) E2/CP860/CP920 IP phones.
Speakerphone key is not applicable to
CP860/CP920 IP phones. Off-hook key
and on-hook key are only applicable to
CP860/CP920 IP phones.
Allow Behavior: You are allowed to
answer or reject incoming calls.
Keys not Locked: Answer and Reject soft
key; OK/√, X, HEADSET key,
Speakerphone key, off-hook key and on-
hook key.
Note: Pressing X key to reject the call is
not applicable to SIP-T23P/T23G/T21(P)
E2/T19(P) E2/CP860/CP920 IP phones.
HEADSET and Speakerphone key are not
applicable to CP860/CP920 IP phones.
Off-hook key and on-hook key are only
applicable to CP860/CP920 IP phones.
Permitted Values
Function Keys Menu key
The Menu
The same as All key (key type
Keys. is Menu) is
locked.
The Menu
The same as All key (key type
Keys. is Menu) is
locked.
Default