Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
571
T57W
T54W/T33P/T-
33G
T48U/S-
/G
T46U/S-
/G
T42-
U/
T42-
S/
T41-
S
T42-
G/
T41-
P
T40P-
/G
T29G
T53W/T-
53
/T43U
/T27G
CP9-
20
T31P/T31G/-
T31/
T30P/T30/
T23P/T23G
/T21(P) E2
T19
(P)
E2
Description
(BLF/BLF list
idle state)
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Line key type is
BLF/BLF List
(BLF/BLF list
ringing state)
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Line key type is
BLF/BLF List
(BLF/BLF list
talking state)
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Line key type is
BLF (BLF hold
state)
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Line key type is
BLF/BLF List
(BLF/BLF list
callout state)
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Line key type is
BLF/BLF List
(BLF/BLF list
failed state)
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Line key type is
BLF List (BLF
list call park
state)
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Line key type is
Voice Mail
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Line key type is
Direct Pickup
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Line key type is
Group Pickup
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Line key type is
Call Park/XML
Park (park suc-
cessfully/call
park idle state)
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Line key type is
Call Park/XML
Park (call park
ringing state)
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Park failed
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Line key type is
Retrieve Park