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Description
The Cisco IP Phone 7821 is designed for small to large businesses. It delivers advanced IP Telephony features and crystal clear wideband audio performance to deliver an easy-to-use, full-featured voice communications experience on Cisco on-premises and hosted infrastructure platforms and third-party hosted call control.
Properties
| Properties | CP-7821-K9 |
| Description | ● Cisco IP Phone 7821 |
| Product Family | CP7800 Series |
| Product Type | IP Phones |
| Hardware Features | |
| Ergonomic design | ● The phone offers an easy-to-use interface and provides a traditional telephony-like user experience. |
| Graphical display | ● White backlit, greyscale, 3.5” 396×162 pixel-based display on the IP Phone 7821, 7841 and 7861. ● Non-backlit, greyscale, 3.28” 384×106 pixel-based display on the IP Phone 7811. ● Provide scrollable access to calling features and text-based XML applications. |
| Handset | ● The handset is a standard wideband-capable audio handset (connects through an RJ-9 port) for the IP Phone 7821, 7841 and 7861. ● The default handset is a standard narrowband-capable audio handset (connects through an RJ-9 port) for the IP Phone 7811, and wideband on handset is available with purchase of additional wideband handset. ● The handset is Hearing Aid-Compatible (HAC) and meets Federal Communications Commission (FCC) loudness requirements for the Americans with Disabilities Act (ADA). You can achieve Section 508 loudness requirements by using industry-standard inline handset amplifiers such as Walker Equipment W-10 or CE-100 amplifiers. The dial pad is also ADA-compliant. ● The narrowband handset (for the IP Phone 7811) produces a magnetic field that attracts small metallic objects such as pins and staples. To avoid possible injuries do not keep small metallic objects close to the handset. |
| Headset | ● The analog headset jack is a standard wideband-capable RJ-9 audio port for the IP Phone 7821, 7841, and 7861. |
| Backlit Indicator | ● The phone supports backlit indicators for the audio path keys (handset, headset and speakerphone), select key, line keys, and message waiting. ● Headset key is not available on the IP Phone 7811. |
| Volume control | ● A volume-control toggle provides easy decibel-level adjustments of the handset, monitor speaker, and ringer. |
| Full duplex speakerphone | ● Full-duplex speakerphone allows gives you flexibility in placing and receiving calls. For added security, the audible Dual Tone Multifrequency (DTMF) tones are masked when the speakerphone mode is used. |
| Bezel | ● The IP Phone 7821, 7841 and 7861 include a default black bezel (replaceable), and an optional silver bezel is also available separately. ● The IP Phone 7811 is available with a black bezel. |
| Dual-position foot stand | ● The display is easy to view and the buttons and keys are easy to use. The two-position foot stand supports viewing angles of 30 degrees and 45 degrees; you can remove the foot stand for wall mounting, with mounting holes located on the base of the phone. (IP Phone 7821, 7841 and 7861) ● Only 1 foot-stand position (45 degrees) is supported on the IP Phone 7811. |
| Wall-mountable | ● The phone can be installed on a wall using optional wall-mount kit (available separately). |
| Electronic hook switch | ● The hookswitch can be controlled electronically with a third party headset connected to the auxiliary port for the IP Phone 7821, 7841, and 7861. |
| Keys | ● The phone has the following keys ◦ Line keys ◦ Soft-keys ◦ Two-way navigation and select keys ◦ Hold/Resume, Transfer and Conference keys ◦ Messaging, Service and Directory keys ◦ Standard key pads ◦ Volume control toggle key ◦ Speakerphone, headset and mute keys (Headset key is not available on the IP Phone 7811) |
| Ethernet cables | ● The IP Phone 7811, 7821, 7841, and 7861 ◦ Category 3/5/5e/6 for 10-Mbps cables with 4 pairs ◦ Category 5/5e/6 for 100-Mbps cables with 4 pairs ● The IP Phone 7841 ◦ Category 5/5e/6 for 1000-Mbps cables with 4 pairs |
| Power Features | |
| IEEE PoE class 1 | ● The phone supports IEEE 802.3af PoE (Class 1); power consumption does not exceed 3.84 watts. |
| AC Power Adapter | ● Cisco power cube 3 (CP-PWR-CUBE-3=) and Cisco power adapter 3 (CP-PWR-ADPT-3) are used as standard Cisco IP Phone Power Supplies for non-PoE deployments. |
| Cisco power injector | ● The IP Phone 7811, 7821 and 7861 are compatible with Cisco Unified IP Phone Power Injector (CP- PWR-INJ), and 7841 is compatible with Cisco Aironet Power Injector (AIR-PWRINJ5=). |
| Call-Control Support | |
| Cisco Unified Communications Manager | ● 8.5.1 ● 8.6.2 ● 9.1.2 ● 10.x and later |
| Cisco Business Edition 6000 | ● 8.6.2 ● 9.1.2 ● 10.x and later |
| Cisco Hosted Collaboration Solution | ● 8.6.2 and later (using supported UCM versions above) |
| Cisco Unified Survivable Remote Site Telephony | ● 8.x and later |
Specifications
| Audio | ● Automatic Gain Control |
| ● Comfort Noise Generation | |
| ● Silence Suppression/Voice Activity Detection | |
| ● Acoustic Echo Cancellation (AEC) | |
| ● Dynamic Noise Reduction | |
| Signaling protocol support | ● Session Initiation Protocol (SIP) |
| Codec support | ● G.711a/μ, G.722, G.729a/b, iLBC, OPUS |
| Key call features support | ● + Dialing (E.164) |
| ● Abbreviated dial | |
| ● Adjustable ringing and volume levels | |
| ● Adjustable display contrast | |
| ● Agent greeting | |
| ● Auto-answer | |
| ● Auto-detection of headset (Not available on the IP Phone 7811) | |
| ● Busy Lamp Field (BLF) (Not available on the IP Phone 7811) | |
| ● Call back | |
| ● Call forward | |
| ● Call history | |
| ● Call park | |
| ● Call Pickup | |
| ● Call timer | |
| ● Call waiting | |
| ● Caller ID | |
| ● cBarge | |
| ● Corporate directory | |
| ● Conference | |
| ● Cross Cluster Extension Mobility (EMCC) | |
| ● Dial from the list | |
| ● Direct transfer | |
| ● Do not disturb | |
| ● Extension Mobility (EM) | |
| ● Forced access codes and client matter codes | |
| ● Group call pickup | |
| ● Hold/resume | |
| ● Immediate divert | |
| ● Intercom (Not available on the IP Phone 7811) | |
| ● Join (Not available on the IP Phone 7811) | |
| ● Message-waiting indicator | |
| ● Meet me conference | |
| ● Mobility | |
| ● Music on hold | |
| ● Mute | |
| ● Network profiles (automatic) | |
| ● On- and off-network distinctive ringing | |
| ● Personal directory | |
| ● Privacy | |
| ● Private Line Automated Ringdown (PLAR) | |
| ● Redial | |
| ● Ring tone per line appearance | |
| ● Shared line | |
| ● Silent monitoring and recording | |
| ● Speed dial | |
| ● Time and date display | |
| ● Transfer | |
| ● Voicemail | |
| ● Whisper coaching” | |
| Directories | ● The phone identifies incoming messages and categorizes them for users on the screen. This makes it fast and easy to return calls using direct dial-back capability. The corporate directory integrates with the Lightweight Directory Access Protocol (LDAP) standard directory. |
| Quality-of-service (QoS) options | ● The phone supports CDP 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 | ● Certificates |
| ● Image authentication | |
| ● Device authentication | |
| ● File authentication | |
| ● Signaling authentication | |
| ● Media encryption using Secure Real-Time Transfer Protocol (SRTP) using AES-128 | |
| ● Signaling encryption using Transport Layer Security (TLS) Protocol using AES-128 or AES-256 | |
| ● Encrypted configuration files | |
| ● 802.1X authentication | |
| ● Cryptography | |
| Configuration options | ● The user can configure IP address assignment statically or through the DHCP client. |
| Physical dimensions (H×W×D) | ● IP Phone 7811: 207 x 195 x 33mm (exclude foot stand) |
| ● IP Phone 7821: 207 x 206 x 28mm (exclude foot stand) | |
| ● IP Phone 7841: 207 x 206 x 28mm (exclude foot stand) | |
| ● IP Phone 7861: 207 x 265 x 28mm (exclude foot stand) | |
| Display | ● IP Phone 7821, 7841, 7861: 3.5” 396×162 pixels |
| ● IP Phone 7811: 3.28” 384×106 pixels | |
| Ethernet switch | ● The phone has a 10/100BASE-T (The Cisco® IP Phone 7811, 7821 and 7861) or a10/100/1000BASE-T |
| (The Cisco® IP Phone 7841) Ethernet connection through two RJ-45 ports, one for the LAN connection and the other for a downstream Ethernet device connection like a PC. | |
| Phone casing composition | ● Polycarbonate Acrylonitrile Butadiene Styrene (ABS) textured plastic. |
| Power requirements | ● The phone is an interoperable IEEE 802.3af PoE (Class 1 device); 48 VDC is required; it can be supplied locally at the desktop using an optional AC-to-DC power supply (CP-PWR-CUBE-3=). Use of the power supply also requires the use of one of the corresponding AC country cords. |
| Operational temperature | ● 32 to 104°F (0 to 40°C) |
| Cosmetic | ● Cisco cosmetic class A |
| Certification and compliance | ● Regulatory Compliance |
| ◦ CE Markings per directives 2004/108/EC and 2006/95/EC | |
| ● 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 | |
| ◦ GB4943 | |
| ● EMC – Emissions | |
| ◦ 47CFR Part 15 (CFR 47) Class B | |
| ◦ AS/NZS CISPR22 Class B | |
| ◦ CISPR22: 2005 w/Amendment 1: 2005 Class B | |
| ◦ EN55022: 2006 w/Amendment 1: 2007 Class B | |
| ◦ ICES003 Class B | |
| ◦ VCCI Class B | |
| ◦ EN61000-3-2 | |
| ◦ EN61000-3-3 | |
| ◦ KN22 Class B | |
| ● EMC – Immunity | |
| ◦ EN55024 | |
| ◦ CISPR24 | |
| ◦ EN60601-1-2 | |
| ◦ KN24 | |
| ◦ Armadillo Light | |
| ● Telecom | |
| ◦ FCC Part 68 HAC | |
| ◦ CS-03-HAC | |
| ◦ AS/ACIF S004 | |
| ◦ AS/ACIF S040 | |
| ◦ NZ PTC 220 | |
| ◦ Industry Standards: TIA 810 and TIA 920 | |
| ◦ Industry Standards: IEEE 802.3 Ethernet, IEEE 802.3af and 802.3at | |
| Licensing | “The Cisco IP Phone 7811 and 7821 require a Basic User Connect License (UCL) in order to connect to |
| Cisco Unified Communications Manager. The Cisco IP Phone 7841 and 7861 require an Enhanced User Connect License (UCL) in order to connect to Cisco Unified Communications Manager.” |
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