Specifications: Technical Information
Device Supported:
IP Phone
Power Description
Input Voltage:
110 V AC
220 V AC
Input Voltage Range:
100 V AC - 240 V AC
Frequency:
50 Hz
60 Hz
Output Voltage:
48 V DC
Maximum Output Current:
917 mA
Miscellaneous
Compatibility:
Cisco Unified IP Phones:
8961
9951
9971
Additional Features: IP Phone Technology:
VoIP
Total Number of Phone Lines:
4
Caller ID:
Yes
Speakerphone:
Yes
Features:
Speed Dial
Indicator
Auto-answer
Call Forwarding
Call History
Call Waiting
Do Not Disturb Setting
Music on Hold
Distinctive Ringing
Date and Time
Voice Mail
Multilingual Menu
Multiple Ring Tones
Voice Codec:
G.711a
G.711u
G.722
G.729ab
iLBC
Display & Graphics
Display Color:
Monochrome
Backlight:
Yes
Screen Size:
3.5"
Screen Resolution:
396 x 162
Interfaces/Ports
Network (RJ-45):
Yes
Number of Network (RJ-45) Ports:
2
PoE (RJ-45) Port:
Yes
Management & Protocols
Communication Protocols:
SIP
LDAP
CDP
SRTP
Quality of Service:
802.1p/q
Controls/ Indicators
Buttons & Keys Type:
Service
Message
Directory
Hold Button
Transfer/Conference
Volume ...