Feature
Navigation keys
Voice codec support
Firmware download
3-port unmanaged Layer 2 switch for data and
voice
Corporate Directory access
Unicode support
IP Phone 1220
Table 38 "IP Phone 1220 features" (page 155)
Table 38
IP Phone 1220 features
Feature
Display
Display size and format
Information line
Dedicated date/time field
Context label field
Keys
Self-labeled line/programmable feature keys
Context-sensitive soft keys
Other
DHCP support
Transducers
Mute key
Headset jack
Navigation keys
Voice codec support
Firmware download
Copyright © 2003–2008, Nortel Networks
.
Characteristic
One key that rocks up, down, left, and right
G.711, G729A, G729AB, G.723.1
Automatic firmware version checking and
download
Built-in
No
No
Characteristics
Single line display in each area
24 characters on each line
1 line – 24 characters
No
No
4 self-labeled line/programmable feature keys,
soft-labeling
9 characters long
4 context-sensitive soft keys, soft-labeling
6 characters long
Yes
Headset (HS) / Handset (HD) / Handsfree (HF)
Yes
On/Off key
One key that rocks up, down, left, and right
G.711, G729A, G729AB, G.723.1
Automatic firmware version checking and
download
Nortel Communication Server 1000
IP Line Fundamentals
NN43100-500 02.02 Standard
Release 5.5 4 February 2008
IP Phone support 155
describes the IP Phone 1220.