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Comparison of 3Com NBX 3100-Series Phones
Maximum system (line) appearances
1
4
4
18
12
50
4
4
Programmable buttons w/ lights
NO
4
4
18
8
50/100 WITH SHIFT BUTTON
4
4
Fixed feature buttons
4
5
6
10
10
4
8
9
Display softkeys
NO
3
3
3
10
NO
NO
NO
Four-way cursor control
NO
YES
YES
YES
YES
NO
NO
NO
Display size
NO
160x33 PIXELS
160x33 PIXELS
320x120 PIXELS
320x120 PIXELS
NO
2 LINES
2 LINES
Ethernet ports
1-10/100
2-10/100
2-1/100
2-10/100
2-10/100/1000 GIGABIT
1-10/100
1-10/100
1-10/100
Power over Ethernet support (802.3af)
YES
YES
YES
YES
YES
YES
NO
NO
Speakerphone
NO
LISTEN ONLY
HALF DUPLEX
FULL DUPLEX
FULL DUPLEX
NO
NO
NO
Wideband audio support
HANDSET ONLY
HANDSET ONLY
HANDSET ONLY
YES
YES
NO
NO
NO
Definable ring tones
NO
9
9
9
9
NO
NO
NO
Headset jack
NO
NO
NO
YES
YES
NO
YES
YES
Codecs G.711, ADPCM, G729 A/B
YES
YES
YES
YES
YES
NO
YES
YES
G.722 codec-ready handset
YES
YES
YES
YES
YES
NO
NO
NO
G.722 codec-ready speakerphone
NO
NO
NO
YES
YES
NO
NO
NO
Adaptive jitter buffer
YES
YES
YES
YES
YES
NO
YES
YES
QoS: IP-ToS, 802.1p
YES
YES
YES
YES
YES
NO
YES
YES
TAPI support
YES
YES
YES
YES
YES
YES
YES
YES
DHCP, Option 184
YES
YES
YES
YES
YES
YES
YES
YES
Desk or wall mountable
YES
YES
YES
YES
YES
YES
YES-BASE UNIT
YES-BASE UNIT
Removable faceplate for localization
NO
NO
NO
YES
YES
NO
NO
NO
Browser-based administration
YES
YES
YES
YES
YES
YES
YES
YES
Platform support
NBX, VCX
NBX, VCX
NBX, VCX
NBX, VCX
NBX, VCX
NBX, VCX
NBX ONLY
NBX ONLY
Required License
GROUP 0
GROUP 1
GROUP 1
GROUP 2
GROUP 2
GROUP 5
GROUP 1
GROUP 1
Required Software Revision
5.0
4.3
4.3
4.2
5.0
4.3
5.0
5.0
 

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