CP-7841-K9, Cisco IP Phone 7841, 4-Line Gigabit VoIP Desk Phone, Refurbished
Warranty: Lifetime
Quick answer: The Cisco CP-7841-K9 is a 4-line IP desk phone from the Cisco 7800 Series with a 3.5-inch grayscale backlit display, a built-in Gigabit Ethernet switch for a pass-through PC port, and Power over Ethernet. Resilient Tec sells it refurbished, covered by our lifetime warranty, with free US shipping from Knoxville, TN.
Cisco IP Phone 7841 (CP-7841-K9) – Specifications
Product Overview
The Cisco IP Phone 7841 is a mid-range business desk phone built for everyday voice users. It supports four lines or programmable feature keys, wideband audio on the handset, headset and speakerphone, and Gigabit Ethernet so a PC can share the same network drop without slowing it down. It registers to Cisco Unified Communications Manager (CUCM), Cisco BroadWorks and Webex Calling, and third-party SIP platforms when loaded with multiplatform (MPP) firmware.
Condition: Refurbished
Genuine Cisco CP-7841-K9, refurbished and fully tested before it ships from Knoxville, Tennessee. Cosmetic wear consistent with prior use is possible. Covered by the Resilient Tec lifetime warranty.
Hardware
Display: 3.5-inch grayscale, 396 × 162 pixels, backlit
Line keys: 4 programmable line/feature keys
Network: 2 × 10/100/1000 Mbps RJ-45 ports (network and PC pass-through)
Power: IEEE 802.3af PoE (Class 1), or optional CP-PWR-CUBE-4 power adapter
Audio: wideband handset, full-duplex speakerphone, RJ9 headset port
Wall mountable with optional wall-mount kit
Call Control & Protocols
SIP signaling
Cisco Unified Communications Manager (CUCM), Cisco BroadWorks, Webex Calling
Third-party SIP call control with Cisco multiplatform (MPP) firmware
Codecs include G.711, G.722, G.729a/ab, iLBC, Opus
What's Included
Cisco CP-7841-K9 phone base
Handset and handset cord
Desk stand
Not included: power adapter (most deployments use PoE), call-control licensing, or Cisco SmartNet contract
Compatibility Notes
Enterprise (CUCM) and multiplatform (MPP) firmware are different loads; tell us at checkout if you need the phone shipped on a specific firmware family
No power supply ships with the phone. Use a PoE switch port or the CP-PWR-CUBE-4 adapter
Frequently Asked Questions
Does the CP-7841-K9 support PoE?
Yes. It is powered by IEEE 802.3af PoE (Class 1), so any standard PoE or PoE+ switch port will power it. A local power adapter (CP-PWR-CUBE-4) is optional.
Does the Cisco 7841 have a Gigabit PC port?
Yes. Both the network and PC ports are 10/100/1000 Mbps, so a computer can daisy-chain through the phone at full Gigabit speed.
Can the CP-7841-K9 work with a non-Cisco SIP phone system?
Yes, when it runs Cisco multiplatform (MPP) firmware it registers to third-party SIP platforms. With enterprise firmware it registers to Cisco Unified Communications Manager.
What warranty comes with the CP-7841-K9?
Every CP-7841-K9 sold by Resilient Tec is covered by our lifetime warranty. If it is not compatible with your equipment, our compatibility guarantee covers a replacement or refund.
How fast does the CP-7841-K9 ship?
In stock at Resilient Tec and shipped from Knoxville, Tennessee. Orders placed by 5:00 pm ET ship the same business day, and standard shipping is free on all US orders with no minimum.
Quick answer: The Cisco CP-7841-K9 is a 4-line IP desk phone from the Cisco 7800 Series with a 3.5-inch grayscale backlit display, a built-in Gigabit Ethernet switch for a pass-through PC port, and Power over Ethernet. Resilient Tec sells it refurbished, covered by our lifetime warranty, with free US shipping from Knoxville, TN.
Cisco IP Phone 7841 (CP-7841-K9) – Specifications
Product Overview
The Cisco IP Phone 7841 is a mid-range business desk phone built for everyday voice users. It supports four lines or programmable feature keys, wideband audio on the handset, headset and speakerphone, and Gigabit Ethernet so a PC can share the same network drop without slowing it down. It registers to Cisco Unified Communications Manager (CUCM), Cisco BroadWorks and Webex Calling, and third-party SIP platforms when loaded with multiplatform (MPP) firmware.
Condition: Refurbished
Genuine Cisco CP-7841-K9, refurbished and fully tested before it ships from Knoxville, Tennessee. Cosmetic wear consistent with prior use is possible. Covered by the Resilient Tec lifetime warranty.
Hardware
Display: 3.5-inch grayscale, 396 × 162 pixels, backlit
Line keys: 4 programmable line/feature keys
Network: 2 × 10/100/1000 Mbps RJ-45 ports (network and PC pass-through)
Power: IEEE 802.3af PoE (Class 1), or optional CP-PWR-CUBE-4 power adapter
Audio: wideband handset, full-duplex speakerphone, RJ9 headset port
Wall mountable with optional wall-mount kit
Call Control & Protocols
SIP signaling
Cisco Unified Communications Manager (CUCM), Cisco BroadWorks, Webex Calling
Third-party SIP call control with Cisco multiplatform (MPP) firmware
Codecs include G.711, G.722, G.729a/ab, iLBC, Opus
What's Included
Cisco CP-7841-K9 phone base
Handset and handset cord
Desk stand
Not included: power adapter (most deployments use PoE), call-control licensing, or Cisco SmartNet contract
Compatibility Notes
Enterprise (CUCM) and multiplatform (MPP) firmware are different loads; tell us at checkout if you need the phone shipped on a specific firmware family
No power supply ships with the phone. Use a PoE switch port or the CP-PWR-CUBE-4 adapter
Frequently Asked Questions
Does the CP-7841-K9 support PoE?
Yes. It is powered by IEEE 802.3af PoE (Class 1), so any standard PoE or PoE+ switch port will power it. A local power adapter (CP-PWR-CUBE-4) is optional.
Does the Cisco 7841 have a Gigabit PC port?
Yes. Both the network and PC ports are 10/100/1000 Mbps, so a computer can daisy-chain through the phone at full Gigabit speed.
Can the CP-7841-K9 work with a non-Cisco SIP phone system?
Yes, when it runs Cisco multiplatform (MPP) firmware it registers to third-party SIP platforms. With enterprise firmware it registers to Cisco Unified Communications Manager.
What warranty comes with the CP-7841-K9?
Every CP-7841-K9 sold by Resilient Tec is covered by our lifetime warranty. If it is not compatible with your equipment, our compatibility guarantee covers a replacement or refund.
How fast does the CP-7841-K9 ship?
In stock at Resilient Tec and shipped from Knoxville, Tennessee. Orders placed by 5:00 pm ET ship the same business day, and standard shipping is free on all US orders with no minimum.