Deploy high-quality voice communications for your information workers, the administrative and managerial staff. The affordable Cisco IP Phone 7841 is full-featured and easy to use. Business calls are more efficient and productive, which fosters collaboration. The 7841 also supports wideband audio for superior voice quality and offers advanced IP communications features.
Signaling protocol support | Session Initiation Protocol (SIP) |
Codec support | G.711a/, G.722, G.729a, iLBC |
Key call features support | Â 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 |
Multiple ring tones | Â The phone supports user-adjustable ring tones. |
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 | Â 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 | Â 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       Â
|
Configuration options | Â The user can configure IP address assignment statically or through the DHCP client. |
Physical dimensions (HWD) | Â IP Phone 7841: 207 x 206 x 28mm (exclude foot stand) |
Weight | Â IP Phone 7841: 868g |
Display | Â IP Phone 7841: 3.5″ 396162 pixels |
Ethernet switch | Â The phone has a 10/100BASE-T or a 10/100/1000BASE-TÂ (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 | Â Polycarbonate acrylonitrile butadiene styrene (ABS) textured plastic. |
Power requirements | Â 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 | Â 32 to 104F (0 to 40C) |
Nonoperational temperature shock | 14 to 140F (-10 to 60C) |
Humidity | Â Operating 10% to 90%, non-condensing
 Non-operating 10% to 95%, non-condensing |
Cosmetic | Â Cisco cosmetic class A |
Certification and compliance | Â 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 & A12)
  IEC 60950 Second Edition (including A11 & 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
|
Â
Â
Â