Cisco CP-6821-3PCC-K9= 6821 IP Phone Features

• White backlit, grayscale, 2.5-in. (6.4-cm) 240 x 120-pixel display
• Supports a narrowband audio handset connected through an RJ-9 port
• The analog headset jack is a wideband-capable RJ-9 audio port for the 6821, 6841, 6851, 6861 and 6871 models.
• Backlit line buttons and a message waiting indicator; uses icons on the LCD to indicate activation of the headset, mute, and select buttons
• Can be mounted directly to the wall using woodscrews and anchors for drywall
• Supports the following Ethernet cables: Category 3, 5, 5e, and 6 for 10-Mbps cables with 4 pairs ◦ Category 5, 5e, and 6 for 100-Mbps cables with 4 pairs
• Support IEEE 802.3af PoE (Class 2); power consumption does not exceed 6.49W
• Full lines supported: 2 lines (SIP registrations)
• A 10/100BASE-T Ethernet connection through two RJ-45 ports; one for the LAN connection and the other for a downstream Ethernet device connection such as a PC
• Interoperable IEEE 802.3af PoE (Class 2) devices. 5V DC is required; they can be supplied locally at the desktop using one of the optional AC-to-DC country-specific power supplies

Features and specifications

• Signaling protocol support : Session Initiation Protocol (SIP)
• Full lines supported : 4 lines (SIP registrations)
• Language support
• Bulgarian
• Catalan
• Chinese (Simplified)
• Chinese (Traditional, Hong Kong)
• Croatian
• Czech
• Danish
• Dutch
• English (American)
• English (United Kingdom)
• Finnish
• French (France)
• Greek
• Spanish (Colombia)
• German
• Hungarian
• Italian
• Japanese
• Korean
• Norwegian
• Polish
• Portuguese (Portugal)
• Russian
• Spanish (Spain)
• Slovak
• Swedish
• Slovenian
• Turkish
• Multiple ring tones : The phones support user-adjustable ring tones
• Quality-of-Service (QoS) options : The phone supports Cisco Discovery Protocol and 802.1Q/p standards, and can be configured with an 801.1Q VLAN header containing the VLAN ID overrides configured by the admin VLAN ID
• Security : 
  • 802.1X authentication
  • Device authentication
  • Encrypted configuration files
  • File authentication
  • Image authentication
  • Manufacture-Installed Certificates
  • Media encryption using SRTP with Advanced Encryption Standard AES-128 or AES-256
  • Signaling encryption using TLS with AES-128 or AES-256
• Configuration options : The user can configure the IP address assignment statically or through the DHCP client
• Physical dimensions (HxWxD) : 8.2 x 6.7 x 1.5 in. (207 x 171 x 37.5) (excluding foot stand)
• Weight :16 oz. (456 g) (excluding foot stand, handset, and package), 18 oz. (512 g) (including foot stand, excluding handset and package)
• Display : 2.5 in. (6.4 cm), 240 x 120 pixels
• Ethernet switch : A 10/100BASE-T Ethernet connection through two RJ-45 ports; one for the LAN connection and the other for a downstream Ethernet device connection such as a PC
• Phone and KEM casing composition : Polycarbonate Acrylonitrile Butadiene Styrene (ABS) textured plastic
• Power requirements : Interoperable IEEE 802.3af PoE (Class 2) devices. 5V DC is required; they can be supplied locally at the desktop using one of the optional AC-to-DC country-specific power supplies. See Table 6 for a list of available power supplies.
• Operational temperature : 32° to 104°F (0° to 40°C)
• Nonoperational temperature shock : 14° to 140°F (-10° to 60°C)
• Humidity :
  • Operating 10% to 90%, noncondensing
  • Non-operating 10% to 95%, noncondensing
• Certification and compliance
  • Regulatory compliance:
    • CE Markings per directives 2014/30/EU and 2014/35/EU
  • Safety:
    • UL 60950 Second Edition
    • CAN/CSA-C22.2 No. 60950 Second Edition
    • EN 60950 Second Edition (including A11 and A12)
    • IEC 60950 Second Edition (including A11 and A12)
    • AS/NZS 60950
  • EMC – Emissions
    • 47CFR Part 15 (CFR 47) Class B
    • AS/NZS CISPR32:2015 Class B
    • CISPR 32: 2015_COR1:2016 Class B
    • EN55032: 2015+AC:2016
    • ICES003 Class B
    • EN61000-3-2:2014 and IEC 61000-3-2:2014
    • EN61000-3-3:2013 and IEC61000-3-3:2013
    • VCCI Class B
  • EMC – Immunity
    • EN55024
    • CISPR24
    • Armadillo Light
    • Telecom
    • FCC Part 68 HAC
    • CS-03-HAC
    • AS/ACIF S004
    • AS/ACIF S040
    • NZ PTC 220
  • Industry standards: TIA 810
  • Industry standards: IEEE 802.3 Ethernet, IEEE 802.3af