LCD
2.8”, B&W
2.8”, B&W
2.8”, B&W
2.8”,320x240
2.8”, B&W
3.5”, 320x240
2.8”, color
2.3”, B&W
2.3”, B&W
2.8”, 128x64,B&W
132 x 64
132 x 64
Yes
132 x 64
Yes
320 x 240
128 x 64
128 x 64
NO
No
No
2(Type A & Type C)
No
No
2(Type A & Type C)
Yes
No
No
2(Type A & Type C)
Class 2
Class 1
Class 2
Class 1
Class 2
Class 2
No
Class 1
10/100M/1000M x2
2 x 10/100/1000M
2 x 10/100M
10/100M/1000M x2
2 x 10/100/1000M
10/100M/1000M x2
2 x 10/100/1000M
2 x 10/100M
2 x 10/100/1000M
USB Type C
RJ9
RJ9
USB Type C
RJ9
USB Type C
RJ9
RJ9
RJ9
USB Type A/C
No
USB Type A/C
No
USB Type A/C
Yes
Yes
No
No
EM20/EM200
3 LED line keys
EM20/EM200
3 LED line keys
EM20/EM200
4 LED line keys
2 Line keys
NO
29
NO
29
YES
33
2 Line keys
11
Yes
3
Yes
3
3
Yes
4
11
2
8
Opus (NB and WB), G.722,
ILBC, G711 (A-law and u-law), G.729AB
8
Opus (NB and WB), G.722,
ILBC, G711 (A-law and u-law), G.729AB
8
Opus (NB and WB), G.722,
ILBC, G711 (A-law and u-law), G.729AB
2
Opus (NB and WB), G.722,
ILBC, G711 (A-law and u-law), G.729AB
1000
G.711/G.729/G.722/OPUS/ILBC
1000
G.711/G.729/G.722/OPUS/ILBC
1000
G.711/G.729/G.722/OPUS/ILBC
1000
Opus (NB and WB), G.722,
ILBC, G711 (A-law and u-law), G.729AB
1000
No
Yes on Handfree
6-way conference
Yes on Handfree
6-way conference
6-way conference
Yes on Handfree
6-way conference
3-way conference
3-way conference
No
No
Yes
No
1000 records
Yes
1000 records
Yes
1000 records
Yes
Yes
Yes
SIP TLS ,SRTP,802.1x,AES-256
2 adjustable angles
SIP TLS ,SRTP,802.1x,AES-256
2 adjustable angles
SIP TLS ,SRTP,802.1x,AES-256
2 adjustable angles
2 adjustable angles
2 adjustable angles