CP-7861-K9 – Sixteen-Line IP Phone – 10/100 Ethernet – Enhanced UCL

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CP-7861-K9 Description

The CP-7861-K9 is a Cisco IP Phone 7861 desk phone in the 7800 Series for operator and manager positions that need many lines on one phone. The phone has 16 lines, a 3.5 in. 396 x 162 pixel grayscale display, 10/100BASE-T Ethernet on two RJ-45 ports and IEEE 802.3af Class 1 PoE, in a body of 207 x 265 x 28 mm. The phone requires an Enhanced User Connect License on Cisco Unified Communications Manager 12.5 and later and uses SIP signaling only.

Quick Specs

Parameter

Specification

Product ID

CP-7861-K9

Product type

Cisco IP Phone 7861 desk phone

Supported line keys

16

Display

3.5 in. 396 x 162 pixel grayscale display

Ethernet switch

10/100BASE-T with LAN and downstream-device RJ-45 ports

PoE class

IEEE 802.3af Class 1

Power input rating

0.42A, 48V DC

Power consumption

Does not exceed 3.84 W

CUCM license

Enhanced User Connect License

CUCM support

Cisco Unified Communications Manager 12.5 and above

Dimensions and weight

207 x 265 x 28 mm, 1053 g

Application Scenarios

Operator And Dispatch Desks

A switchboard or dispatch operator can assign the sixteen programmable keys to separate extensions and answer each one directly from the phone.

Manager With Team Extensions

A manager who covers the numbers of a whole team can put those lines and speed dials on the keys, with multiple calls per line handled on the same phone.

10/100 Desks With A PC

In offices cabled for 10/100BASE-T, the second RJ-45 port connects the user’s PC through the phone, so a single switch port serves both devices.

Product Comparison

Parameter

CP-7861-K9

CP-7841-K9

CP-7821-K9

Display

3.5 in. 396 x 162 pixels

3.5 in. 396 x 162 pixels

3.5 in. 396 x 162 pixels

Supported lines

16

4

2

Ethernet switch

10/100BASE-T

10/100/1000BASE-T

10/100BASE-T

CUCM license

Enhanced User Connect License

Enhanced User Connect License

Basic User Connect License

PoE class

IEEE 802.3af Class 1

IEEE 802.3af Class 1

IEEE 802.3af Class 1

Dimensions

207 x 265 x 28 mm

207 x 206 x 28 mm

207 x 206 x 28 mm

Weight

1053 g

868 g

867 g

CP-7861-K9 offers sixteen line keys against four on CP-7841-K9 and two on CP-7821-K9, and its body is longer at 207 x 265 x 28 mm and 1053 g against 207 x 206 x 28 mm. It stays on 10/100BASE-T Ethernet, so a desk whose PC needs Gigabit through the phone must use CP-7841-K9, which has four lines. CP-7861-K9 and CP-7841-K9 both need Enhanced User Connect License; a deployment licensed for Basic UCL fits CP-7821-K9 with two lines. All three use IEEE 802.3af Class 1 PoE.

Ordering Checklist

  • CUCM license: Order the Enhanced User Connect License for CUCM 12.5 and later. A Basic UCL plan covers only the 7811 and 7821.
  • Power for non-PoE ports: Add Cisco Power Adapter 3 in the regional PID for the destination (for example CP-PWR-ADPT-3-NA=, CP-PWR-ADPT-3S-EU= or CP-PWR-ADPT-3S-UK=) plus the matching CP-PWR-CORD-xx= power cord. Without 802.3af PoE the phone has no power source, and the adapter is a regional PID.
  • Wall mount and foot stand: Order CP-7861-WMK= for wall mounting and CP-7861-FS= for a spare foot stand; the 7861 does not use CP-7800-WMK= or CP-7800-FS=. The 7861 body is longer, and kits for the other 7800 Series models do not fit it.

Product Front

The Cisco IP Phone 7800 Series has distinct hardware types:

  • Cisco IP Phone 7811 No buttons on either side of the screen
  • Cisco IP Phone 7821 Two buttons on the left side of the screen
  • Cisco IP Phone 7841 Two buttons on either side of the screen
  • Cisco IP Phone 7861 16 buttons at the right edge of the phone

1

Incoming call or voicemail indicator

2

Line and feature buttons

3

Softkeys

4

Navigation (navigation ring and Select button

5

Hold, Transfer, and Conference

6

Speakerphone, Headset, and Mute

7

Voicemail, Applications, and Directory

8

Volume

Specifications

Parameter Specification Parameter Specification
Product ID CP-7861-K9 Cisco ordering ID CP-7861-K9=
Product type Cisco IP Phone 7861 desk phone Supported line keys 16
Display 3.5 in. 396 x 162 pixel grayscale display Ethernet switch 10/100BASE-T with two RJ-45 ports
PoE class IEEE 802.3af Class 1 Maximum power consumption Does not exceed 3.84 W
Power input rating 0.42A, 48V DC CUCM license Enhanced User Connect License
CUCM support Cisco Unified Communications Manager 12.5 and above Hosted collaboration support Cisco Hosted Collaboration Solution 8.6.2 and later
SRST support Cisco Unified SRST 8.x and later Signaling protocol Session Initiation Protocol
Codec support G.711, G.722, G.722.2, G.729ab, iLBC, OPUS Handset Wideband-capable RJ-9 handset
Headset port Wideband-capable RJ-9 analog headset port Speakerphone Full-duplex speakerphone
Foot-stand positions 30 degrees and 45 degrees Wall mounting Optional CP-7861-WMK= wall-mount kit
Dimensions 207 x 265 x 28 mm excluding foot stand Weight 1053 g
Operating temperature 0°C to 40°C (32°F to 104°F) Operating humidity 10% to 90%, non-condensing
Phone casing composition Polycarbonate ABS textured plastic Color options Charcoal base model, separate white SKU available

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Need pricing, stock, or shipping details for the CP-7861-K9 ? Layer23-Switch can help you check current availability, lead time, and delivery options for this. Send us the part number, quantity, and destination country via live chat or email [email protected] for a fast quotation.

Quality Certifications

Customer Reviews

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4.7
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    Samuel Boyd
    Posted on 08/03/2026
    Verified Buyer
    5.0

    Even with holiday delays in the carrier network, shipment arrived on time.

    Omar Rivera
    Posted on 19/02/2026
    Verified Buyer
    4.0

    Documentation included matches what we’d expect from a sealed retail unit. Invoice formatting was a bit different from what our AP system expects, but workable.

    Eugene Lopez
    Posted on 06/02/2026
    Verified Buyer
    4.0

    We ran a cost comparison across four vendors. Layer23 was the clear winner. Wish the lead time was a bit shorter, but product quality made up for it.

    Carol Peletier
    Posted on 10/09/2024
    Verified Buyer
    5.0

    Looks complicated but it’s very helpful. Seller was very kind.

    Receptionist
    Posted on 02/05/2024
    Verified Buyer
    5.0

    16 lines! I can see everyone’s status. Great phone for front desk.

Questions & Answers

  • Which PID orders CP-7861-K9 in white?

    CP-7861-W-K9= is the white version. The 7800 Series ordering table lists CP-7861-K9= in charcoal and CP-7861-W-K9= in white as separate PIDs. Both are 16-line phones with the same Enhanced User Connect License requirement, so pick the PID by desk color when the order is placed.
  • Which bezel spares fit CP-7861-K9?

    Order CP-7861-B-BEZEL= for the black bezel or CP-7861-S-BEZEL= for the silver bezel. Cisco lists both as spares for this phone, and each PID carries the 7861 model number. Add the bezel as its own line when a desk needs a different finish or a damaged bezel is replaced.
  • Which handset cord and hook PIDs are listed for CP-7861-K9?

    Cisco lists CP-7800-HS-CORD= as the handset cord and CP-7800-HS-HOOK= as the handset hook, sold in packs of 20. For a white phone, the wideband handset is CP-DX-W-HS= with the cord CP-DX-W-CORD=, while CP-DX-HS= is the standard wideband spare. These are spare orders, separate from the phone.
  • Does the Cisco notice on MIC and LSC certificates list CP-7861-K9?

    Yes. CP-7861-K9 is on the affected PID list of a Cisco notice about MIC and LSC certificates, which also names CP-7832-K9=, CP-9951-C-K9 and CP-6921. The notice concerns certificates and does not change the ordering PID. Read the notice itself for the problem description and the workaround before deploying.

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DataSheet Downloads

  • CP-7861-K9 Datasheet