VoIP телефон Cisco 6841 (Разопакован продукт), 3.5" (8.89 cm) LCD дисплей, 4 линии, 2x 10/100/1000Base-T, черен

Cisco 6841 Phone
CP-6841-3PW-CE-K9

Cisco IP Phone 6800 Series product overview

The line buttons on each model are fully programmable. You can set up line buttons to support either SIP registrations, or call features, such as speed dialing. You can also boost productivity by handling multiple calls for each SIP registration, using the multiple-calls-per-line appearance feature. Tricolor LEDs on the line buttons support the calling features and make the phone simple to use.

Fixed function buttons on the 6800 series phones give you one-touch access to service, messaging, directory, hold/resume, transfer, and conference features. A full-duplex speakerphone lets you set up clear multiparty conferences for flexible, productive collaboration. There are fewer fixed function buttons available on the 6821 than on the 6841 and 6851 (see Table 1 for details).

The Cisco IP Phone 6800 Series maintains the same usability standards and standards for a context-sensitive user experience as the Cisco IP Phone 7800 Series. The 6821 IP phone has a 2.5-inch (240x120-pixel) grayscale display with white backlighting for easy reading. The 6841 and 6851 IP phones each have a high-resolution 3.5-inch (396x162-pixel) grayscale display with white backlighting. Localized language support is available for global users. See Table 6 for a list of available languages.

The 6800 Series is also energy-efficient and eco-friendly, to support green initiatives. The 6821 and 6851 support Power over Ethernet (PoE) Class 2. The 6821, 6841, and 6851 are Energy Star certified. The 6841 and 6851 support a power-save option that reduces power consumption during off-hours, saving costs by increasing energy efficiency.

The 6800 Series is ideal for businesses that want to update their phone systems from traditional analog or digital-based systems to an IP communications system with supported multiplatform call control systems.

Audio

● Codecs: G.711 (A-law andm-law), G.722.2, G.722, G.729 (a, b, ab), ILBC, iSAC, OPUS
● DTMF: In-band, out-of-band (RFC 2833), and SIP INFO
● MOS Score Reporting (Telchemy)

Network

● MAC address (IEEE 802.3)
● SIP protocol support (RFC 3261 and companion RFCs)
● IPv4 (RFC 791)
● IPV6 (RFC 2460): System Interoperability Testing Required
● DNS: A record (RFC 1706), SRV record (RFC 2782)
● Dynamic Host Configuration Protocol (DHCP) (RFC 2131)
● Simple Network Time Protocol (SNTP) (RFC 2030)
● Network Address Translation (NAT) traversal, serial tunnel (STUN)
● User Datagram Protocol (UDP) and TCP
● Link Layer Discovery Protocol (LLDP)
● Cisco Discovery Protocol
● TR.69 provisioning: System Interoperability Testing Required

Security

● Certificates
● Image authentication
● File authentication
● 802.1X authentication
● Transport Layer Security (TLS)
● Media encryption via Secure Real-Time Transport Protocol (SRTP) with Advanced Encryption Standard (AES-128 or AES-256)
● Signaling encryption using TLS with AES-128 or AES-256
● Encrypted configuration files
● Digest authentication
● Password login
● HTTPs secure provisioning
● Mandatory/Optional Secure call

Applications

● Cisco XML Services Interface (XSI)
● Cisco UC-One Presence

Call control and audio features

● Busy Lamp Field (BLF)[1]
● Call back on busy
● Call blocking – anonymous and selective
● Call conferencing – hosted (N-party)1
● Call conferencing – local 3-way
● Call forwarding – unconditional, no answer, on busy
● Call hold
● Call pickup – selective and group1
● Call park and unpark1
● Call transfer – attended or blind
● Call waiting
● Caller ID name and number and outbound caller ID blocking
● Caller ID mapping for incoming calls
● Configurable dial/numbering plan support with inter-digit timers – per line
● Configurable supplementary services soft keys
● Distinctive ringing based on calling and called number
● Do not disturb
● Extension mobility/hot-desking1
● Group paging1
● Hoteling1
● Intercom1
● Individual volume setting per audio path (headset, handset, or speaker)
● Multicast paging
● Music on hold1
● Outbound caller ID blocking
● Visual Voice Message Waiting Indicator (VMWI)
● Shared/bridge line appearance1
● Supplementary services feature activation codes

Directory

● Local phonebook
● XML/Lightweight Directory Access Protocol (LDAP) remote directory
● Broadsoft directory
● Intelligent search
● Call history
● Reverse address lookup in all directories

Management

● Configuration: Browser, phone, auto-provision
● Auto-provision via TFTP, HTTP, or HTTPs for mass deployment
● Packet capture, Problem Reporting Tool (PRT) and upload of PRT

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