E
N
snom 821 Quick Start Guide
G
L
NOTE: In letter mode, enter umlauts or letters with accents by pressing the respective
I
letter key. Example: Press
S
letters depend on the phone's language setting.
H
At a glance
Outgoing
identity:
Display -
idle screen
Alphanumeric
Star key
• S witching between upper & lower
case when pressed briefl y while in
letter mode
• Press for 3 seconds:
Lock/unlock the keypad
8
2
as often as necessary to type ä, à, â etc. Available
ABC
1
4
GHI
keypad
7
PQRS
a
a
A
A
a
A
2
3
ABC
DEF
5
6
JKL
MNO
8
9
TUV
WXYZ
0
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Call
LED
• Blinking fast: Incoming call
• Steady light: In call
• Blinking slowly: Missed call
S how virtual keys on
the display:
Press key for 2 seconds
Freely programmable LED
keys
Default setting: Line
• F ast-blinking LED: Incoming
call. Press key or to accept
• Steadily lit LED: In call
• S low-blinking LED: Call on
hold
Audio control keys
•
A djust volume
•
Mute microphone
•
Speakerphone on/off
•
Headset on/off
(hash)
Pound
key
mode for TFTP update
• C on
acti
• F rom
Red
Dedic
custo
functi
: Rescue
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