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Cisco Systems, Inc.

Cisco Systems, Inc. CP-7861-K9= 7861 VoIP Phone 16 Lines 3.5" 396x162 PoE

SKU CH-0JRR-2A55S MPN CP-7861-K9=

A 16-line VoIP desk phone with a 3.5-inch 396×162 display, PoE power and SIP signalling

  • TypeVoIP Phones
  • StandardsIEEE 802.3 Ethernet, IEEE 802.3af and 802.3at
  • ProtocolsSignaling protocol support: Session Initiation Protocol (SIP
  • SecurityCertificates Image authentication Device authentication File
  • Display3.5", 396x162 pixels
  • Dimensions207 x 265 x 28mm (exclude foot stand)
  • Handles 16 simultaneous lines for busy environments
  • 5 inch 396 by 162 pixel display shows clear call data
  • PoE support via IEEE 802.3af and 802.3at removes separate power supply
  • SIP signalling with TLS and SRTP encryption secures voice traffic
  • Compact 207 by 265 by 28 mm footprint fits tight desk space

Cisco 7861 IP Phone — 16-line VoIP desk phone

The Cisco 7861 IP Phone is a corded VoIP handset built for office workers who need up to 16 line appearances on a single device. It runs the Session Initiation Protocol and draws power through IEEE 802.3af or 802.3at Power over Ethernet, so no separate power supply is required. The 3.5-inch 396 by 162 pixel display shows call details and menus at a glance.

Enhanced User Connect License and dual RJ-45 ports

The bundled Enhanced User Connect License unlocks the full feature set for a single user, including Busy Lamp Field, call-back, auto-answer and adjustable ringing levels. Two RJ-45 network ports allow the phone to sit inline between the wall jack and a PC, sharing one cable drop while passing Ethernet traffic through. Media encryption uses SRTP with AES-128 and signalling encryption uses TLS with AES-128 or AES-256.

Wall-mountable chassis with integrated security

The handset weighs 1053 grams and measures 207 by 265 by 28 millimetres without the foot stand, giving it a solid feel on the desk or on a wall bracket. Built-in certificates handle image, device, file and signalling authentication, while 802.1X network access control and encrypted configuration files protect provisioning data. Acoustic echo cancellation, dynamic noise reduction and comfort noise generation keep voice quality consistent in busy environments.

Highlights

  • Handles 16 simultaneous lines for busy environments
  • 5 inch 396 by 162 pixel display shows clear call data
  • PoE support via IEEE 802.3af and 802.3at removes separate power supply
  • SIP signalling with TLS and SRTP encryption secures voice traffic
  • Compact 207 by 265 by 28 mm footprint fits tight desk space

Specifications

BrandCisco Systems, Inc.
Model7861 IP Phone
Part NumberCP-7861-K9=
TypeVoIP Phones
StandardsIEEE 802.3 Ethernet, IEEE 802.3af and 802.3at
ProtocolsSignaling protocol support: Session Initiation Protocol (SIP)
SecurityCertificates
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
Display3.5", 396x162 pixels
Dimensions207 x 265 x 28mm (exclude foot stand)
Weight1053g
FeaturesAUDIO
Automatic Gain Control
Comfort Noise Generation
Silence Suppression/Voice Activity Detection
Acoustic Echo Cancellation (AEC)
Dynamic Noise Reduction
KEY CALL FEATURES
+ Dialing (E.164)
Abbreviated dial
Adjustable ringing and volume levels
Adjustable display contrast
Agent greeting
Auto-answer
Auto-detection of headset
Busy Lamp Field (BLF)
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 (E
Shipping weight2.27 kg
Package size127 × 127 × 127 mm

Questions about this item

Does the 3.5 inch 396x162 pixel display need any periodic calibration or replacement?

The display is a fixed pixel-based panel with no user-serviceable parts; no calibration or scheduled replacement is required.

With 16 line keys active on SIP calls, which resource reaches its limit first during sustained use?

The 16 programmable line keys define the maximum concurrent sessions; once all are in use, new calls must wait for a line to free.

How much heat and fan noise does the CP-7861-K9= produce when powered via PoE all day?

The phone draws power through IEEE 802.3af/at PoE ports with no internal fan, so it runs silently and generates only minimal warmth.

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