• Cisco CP-7841-3PCC-K9 7821 VoIP desk phone with black keypad and silver display
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Cisco

Cisco CP-7841-3PCC-K9 | VOIP desk phone | 4 lines | 3.5-in grayscale LCD | 2x Ethernet (LAN+PC) | PoE 802.3af | wideband audio | Multiplatform (SIP) firmware

CP-7841-3PCC-K9

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Description

Professional VOIP desk phone with Multiplatform (SIP) firmware for broad provider interoperability. Features a 3.5-inch grayscale backlit display, four line appearances, integrated 2‑port Ethernet switch for a clean desktop, and wideband audio for crystal‑clear calls. Powered via IEEE 802.3af PoE with optional external PSU when needed.

Features

- Open SIP (MPP) interoperability with popular hosted and on‑prem PBXs
- Four line keys for multi‑line handling and feature access
- Backlit display and intuitive soft keys for quick navigation
- Integrated 2‑port Ethernet switch to simplify desk cabling
- Wideband audio for clear conversations on handset and speaker

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- Device type: VOIP desk phone
- Firmware: Multiplatform (MPP) SIP
- Lines: 4 programmable line/feature keys
- Display: 3.5-inch grayscale, backlit LCD
- Audio: Wideband (HD) handset and speakerphone
- Network: 2x Ethernet ports (LAN + PC pass‑through)
- Power: IEEE 802.3af PoE; optional external power adapter
- User controls: Soft keys, navigation cluster, volume, mute, speaker
- Headset: Supported via dedicated headset port
- Mounting: Desktop with adjustable stand; wall‑mount capable (with kit)

FAQs

Q: What is the difference between Multiplatform (MPP) and enterprise firmware?
A: MPP uses open SIP for interoperability with many hosted PBX providers, while enterprise firmware is intended for specific enterprise call-control systems.

Q: Do I need a separate power adapter?
A: Not if your switch provides IEEE 802.3af PoE. Otherwise, use a compatible external power adapter.

Q: Can I connect my PC through the phone?
A: Yes. It includes a second Ethernet port for PC pass‑through to reduce cabling.

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