Cisco IP Phone 8851 VoIP telephone

Cisco IP Phone 8851 - Corded/Wireless - Corded - Bluetooth - Wall Mountable - Charcoal - 5 x Total Line - VoIP - 2 x Network (RJ-45) - PoE Ports The Cisco IP Phones 8811, 8841, 8851, and 8861 include accessibility features for the visually impaired, the blind, and the hearing or motor impaired.


Technical specifications:

Several:
- Energy Star: Yes

Food Description:
- Input voltage: 48V DC
- Current source: AC adapter

Technical information:
- speaker phone: Yes

voice codec:
- G.722
- G.729a
- G.711a
- iLBC
- iSAC
- G.711u

Features:
- Auto Answer
- resume call
- Call Waiting
- music on hold
- Busy Token Field (BLF)
- distinctive sound
- day and time
- Safety
- Multilingual Menu
- Conference call
- Retention
- voice mail
- Free hands
- redial
- call forwarding
- Park Calls
- pick up call
- Silence
- Posts
- adjustable screen
- Speed ​​Dial
- Headset
- call log
- Call transference
- Intercom
- Voice Message Waiting Indicator Light
- Share calls
- Indicator
- bluetooth
- -response to group

- Wireless Technology: bluetooth
- IP Phone Technology: VoIP
- Marker Type: Numeric keyboard
- Total number of telephone lines: 5
- caller ID: Yes
- Wireless headset connectivity technology: wired/wireless
- Base Unit Connectivity Technology: With cable

Display and graphics:
-Screen Resolution: 800x480
-Screen size: 5´´ (12.7cm)
-Screen Type: LCD
-backlight: Yes

Interfaces/Ports:
- USB: Yes
- Ports number of network (RJ-45): 2
- Network (RJ-45): Yes
- headphone port: Yes
- PoE port (RJ-45): Yes

Physical:
- Approximate weight): 1.17kg
- Format: Wall Mountable
- Height: 229.1mm
- Width: 257.3mm
- Depth: 39.9mm

Communications Protocols:
- Yep LLDP-PoE
- LLDP
- SDP
- LLDP-MED
- RTP
- RTCP
- DHCP
- SRTP

Quality of Service (QoS):
- 802.1p/q
- 802.1Q VLAN support

Controls/Indicators:

Type of Buttons and Keys:
- Line Selection Navigation
- directory
- Hold button
- Speaker
- Headphones
- Warning message
- Call transference
- Conference
- Programmable
- Volume control
- Silence