The Cisco IP Phone 8841 integrates 5 inches high-resolution widescreen VGA backlit color display, localized language support to meet the needs of global users, the five programmable line keys can be configured to support multiple directory numbers and various calling features,the fixed function keys allow you one-touch access to applications, messaging, directory and conference.
Figure 1 shows the appearance of the CP-8841-K9.
Table 1 shows the Quick Spec.
5’’ high-resolution (800×480) WVGA color display
Programmable Line Keys
Number of Line Keys
Full Duplex Speakerphone
Third-party Call Control
Before you use the Cisco IP Phone 8841, it should be connected to the corporate IP telephony network.
Figure 2 shows the bottom ports of this IP Phone.
AC power wall plug (optional)
Network port (10/100 SW) connection. IEEE 802.3af power enabled.
Access port (10/100 PC) connection.
Auxiliary port (optional).
Analog headset connection (optional).
Figure 3 shows the buttons and hardware.
Handset light strip
buttons and Session
Navigation cluster and Select button
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Audio codec support
● G.711a-law and mu-law, G.722, G.729a, Internet Low Bitrate Codec (iLBC), and Internet Speech Audio Codec (iSAC)
● + Dialing
● Abbreviated dialing
● Adjustable ring tones and volume levels
● Adjustable display brightness
● Agent greeting
● Auto-detection of headset
● Busy Lamp Field (BLF)
● Busy Lamp Field (BLF) Pickup
● Busy Lamp Field (BLF) speed dial
● Call forward
● Call forward notification
● Call filter
● Call history lists
● Call park
● Call pickup
● Call timer
● Call waiting
● Call chaperone
● Caller ID
● Corporate directory
● Conference, including traditional Join feature
● Cross Cluster Extension Mobility (EMCC)
● Direct transfer
● Extension mobility
● Fast-dial service
● Forced access codes and client matter codes
● Group call pickup
● Immediate divert
● Malicious-caller ID
● Message-waiting indicator (MWI)
● Meet-me conference
● Music on hold (MoH)
● Network profiles (automatic)
● On- and off-network distinctive ringing
● Personal directory
● Predialing before sending
● Private Line Automated Ringdown (PLAR)
● Ring tone per line appearance
● Service Uniform Resource Locator (URL)
● Shared line
● Silent monitoring and recording
● Speed dial
● Time and date display
● Uniform Resource Identifier (URI) dialing
● Visual voice mail
● Voice mail
● Whisper coaching
● You can control the hookswitch electronically with a third-party headset connected to the auxiliary port.
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.
● Session Initiation Protocol (SIP) for signaling
● Session Description Protocol (SDP)
● IPv4 and IPv6
● User Datagram Protocol (UDP) (used only for Real-Time Transport Protocol [RTP] streams)
● Dynamic Host Configuration Protocol (DHCP) client or static configuration
● Gratuitous Address Resolution Protocol (GARP)
● Domain Name System (DNS)
● Trivial File Transfer Protocol (TFTP)
● Secure Hypertext Transfer Protocol (HTTPS)
● Real-Time Transport Protocol (RTP)
● Real-Time Control Protocol (RTCP)
● Cisco Peer-to-Peer Distribution Protocol (PPDP)
● Cisco Discovery Protocol
● LLDP (including LLDP-MED)
● Switch speed auto-negotiation
● Secure boot
● Secure credential storage
● Device authentication
● Configuration file authentication and encryption
● Image authentication
● Random bit generation
● Hardware cryptographic acceleration
● Certificate Authority Proxy Function (CAPF)
● Manufacturer-Installed Certificates (MIC)
● Locally Significant Certificates (LSC)
● Ethernet 802.1x supplicant options: Extensible Authentication Protocol-Flexible Authentication via Secure Tunneling (EAP-FAST) and Extensible Authentication Protocol-Transport Layer Security (EAP-TLS)
● Signaling authentication and encryption using TLS
● Media authentication and encryption using SRTP
● HTTPS for client and server
● Secure Shell (SSH) Protocol server
● SSL-based VPN client
(H × W × D)
● 9.02 x 10.13 x 1.57 in. (229.1 x 257.34 x 40 mm)
(excluding foot stand)
Weight (with handset)
● 2.58 lb (1.17 kg)
● Polycarbonate acrylonitrile butadiene styrene (ABS) textured plastic; Cosmetic class A
● 32 to 104°F (0 to 40°C)
Nonoperational temperature shock
● 14 to 140°F (-10 to 60°C)
● Operating 10 to 90%, noncondensing
● Nonoperating 10 to 95%, noncondensing
● Arabic (Arabic Area)
● Bulgarian (Bulgaria)
● Catalan (Spain)
● Chinese (China)
● Chinese (Hong Kong)
● Chinese (Taiwan)
● Croatian (Croatia)
● Czech (Czech Republic)
● Danish (Denmark)
● Dutch (Netherlands)
● English (United Kingdom)
● Estonian (Estonia)
● French (France)
● French (Canada)
● Finnish (Finland)
● German (Germany)
● Greek (Greece)
● Hebrew (Israel)
● Hungarian (Hungary)
● Italian (Italy)
● Japanese (Japan)
● Latvian (Latvia)
● Lithuanian (Lithuania)
● Korean (Korea Republic)
● Norwegian (Norway)
● Polish (Poland)
● Portuguese (Portugal)
● Portuguese (Brazil)
● Romanian (Romania)
● Russian (Russian Federation)
● Spanish (Columbia)
● Spanish (Spain)
● Slovak (Slovakia)
● Swedish (Sweden)
● Serbian (Republic of Serbia)
● Serbian (Republic of Montenegro)
● Slovenian (Slovenia)
● Thai (Thailand)
● Turkish (Turkey)
Why can't I see all the active calls on my phone?
When there are more calls than available session buttons on the phone, you can scroll to see them. Calls are sorted from oldest to newest, with the oldest call at the top of the list.
How do I redirect an incoming call when I am on a call?
To redirect an incoming (ringing) call while on another call, highlight the incoming call, and then press Decline. Otherwise press Decline to redirect the current, active call.
How do I silence a ringing call, if I'm on a call?
You can silence the incoming (ringing) call. Press Volume down once, and then let the incoming call go to the target number (voice mail or predetermined number set up the system administrator).
What is the difference between the buttons on the left and those on the right of the screen?
Your phone has feature buttons on the left and call session buttons on the right. Use the feature buttons to access features (such as speed dial) or select a phone line. Use call session buttons to perform call-related tasks, such as making a new call, resuming a held call, or checking your voicemail. The positions of the session buttons and feature buttons can be reversed on phones that use a locale with a right-to-left reading orientation, such as Hebrew and Arabic.
Why do the softkeys keep changing?
Softkeys act on the selected (highlighted) call or menu item only. The softkeys that display depend on the call or item you have selected.
What is the best way to look at calls when I have a shared line or multiple lines?
If you have a shared line or multiple lines, it is recommended that you use the All Calls feature to view calls. When you press the All Calls button (on the left), all calls for all your lines are listed on the phone screen in chronological order (oldest first). If you do not have an All Calls button, contact your system administrator to set up this feature. Your administrator can also set up your primary line key to act the same as the All Calls button.
What should I do if I accidentally press a button while on a call?
If you are on a call and press a button for another line, your line view will change. Your current call disappears from view and calls for the newly selected line are displayed. To redisplay the call you are on, select the line that it is on, press All Calls, or, press the Primary line key if it is set up by your administrator to display all calls.
What does the Swap softkey do?
The Swap softkey allows you to toggle between two calls before completing the transfer or creating a conference. This allows you to consult privately with the party or parties on each call before combining the calls into a conference.
Can I cancel a conference or transfer procedure after I have started it?
Yes, before completing a conference or transfer, you can press Release or Cancel to cancel it.
Why does my phone not work "wake up" when it worked before?
If your system administrator has set up your phone for EnergyWise, the phone may be sleeping (powered down). Your system administrator sets your phone to sleep at a certain time and wake (power up) at a certain time. Your phone wakes up at the time your system administrator configured. You can press the Select button to wake your phone up. Contact your system administrator to have the sleep and wake up times changed.
What happens to video when I put a call on hold?
Video transmission is blocked until you resume the call.
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