Cisco CP-7841-K9++ IP Phone with 4-Line Support, Wideband Audio, and PoE – Charcoal

Cisco 7841 IP Phone TAA Compliant – New

Cisco CP-7841-K9++ IP Phone with 4-Line Support, Wideband Audio, and PoE – Charcoal

Product Description:
The Cisco CP-7841-K9++ is a business-class IP phone designed to deliver clear voice communication, efficient call handling, and secure connectivity for professionals across various industries. As part of the Cisco 7800 Series, this model supports four SIP lines and offers a perfect balance of simplicity, functionality, and affordability—ideal for office workers, call center agents, or reception desks.

With a high-resolution 3.5-inch grayscale display, intuitive navigation cluster, and dedicated soft keys, the CP-7841 enhances productivity by giving users quick access to features such as voicemail, call transfer, conferencing, and directory lookups. Its ergonomic design and sleek charcoal finish make it a professional fit for any desk or cubicle.

Equipped with wideband audio (G.722 codec) and a full-duplex speakerphone, the CP-7841 ensures high-quality, crystal-clear conversations whether using the handset, headset, or speaker mode. It includes dual Ethernet ports for seamless connectivity and supports Power over Ethernet (PoE), which reduces cable clutter and simplifies deployment.

This model integrates seamlessly with Cisco Unified Communications Manager and supports secure SIP signaling via SRTP and TLS, offering strong protection for enterprise communications.

Features:

• Supports 4 programmable SIP lines; ideal for knowledge workers

• High-resolution grayscale display with intuitive user interface

• Wideband audio for handset, speaker, and headset; crystal-clear calls

• Dual Ethernet ports and PoE support; easy integration and setup

• Secure SIP signaling with SRTP/TLS; compatible with Cisco UC platforms

Official Cisco Resources for CP-7841-K9++

🔧 1. Setup & Administration Guides:

• Go to the official Cisco CP-7841 Product Support Page.

• Under “Support”, select “Install and Upgrade Guides” or “Administration Guides”.

• Look for:

  • Cisco Unified IP Phone 7800 Series Administration Guide

  • Cisco Unified IP Phone 7800 Series User Guide

  • Cisco IP Phone 7841 Quick Start Guide

📥 2. Datasheet (PDF):

• Direct PDF link: Cisco 7800 Series Datasheet

⚙️ 3. Configuration Notes for CUCM (Cisco Unified Communications Manager):

• The phone is typically registered using SCCP or SIP via CUCM.

• You’ll need to:

  • Add the device using the MAC address.

  • Assign a Device Pool and Phone Button Template (4-line).

  • Set SIP profile and enable SRTP/TLS if needed.

  • Use Cisco Unified OS Admin to apply firmware if necessary.

🔌 4. Network & PoE Setup:

• Plug into a PoE-enabled switch or use a Cisco PoE injector.

• Ensure the switch port is on a voice VLAN (optional QoS tagging).

• No need for external power supply if using PoE.