---
product_id: 221396071
title: "Cisco CP-7821-K9 IP Phone - Black (Refurbished)"
brand: "amazon renewed"
price: "₨40443"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/221396071-cisco-cp-7821-k9-ip-phone-black-refurbished
store_origin: LK
region: Sri Lanka
---

# 11.6" x 9.3" x 4.5" 1 unit 2.55 lbs Cisco CP-7821-K9 IP Phone - Black (Refurbished)

**Brand:** amazon renewed
**Price:** ₨40443
**Availability:** ✅ In Stock

## Summary

> 📞 Connect in Style: Where Function Meets Elegance!

## Quick Answers

- **What is this?** Cisco CP-7821-K9 IP Phone - Black (Refurbished) by amazon renewed
- **How much does it cost?** ₨40443 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/221396071-cisco-cp-7821-k9-ip-phone-black-refurbished)

## Best For

- amazon renewed enthusiasts

## Why This Product

- Trusted amazon renewed brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eco-Friendly Choice:** Refurbished for sustainability without compromising quality.
- • **User-Friendly Interface:** Intuitive controls for seamless navigation and efficiency.
- • **Elevate Your Communication:** Experience crystal-clear calls with advanced audio technology.
- • **Robust Connectivity Options:** Stay connected with versatile network capabilities.
- • **Sleek & Professional Design:** A modern aesthetic that complements any office environment.

## Overview

The Cisco CP-7821-K9 IP Phone is a refurbished landline phone designed for modern workplaces, featuring a compact size of 11.6" x 9.3" x 4.5" and weighing just 2.55 lbs. It combines advanced audio technology with a sleek design, making it an ideal choice for professionals seeking reliable communication solutions.

## Description

Cisco CP-7821-K9 IP Phone - Black (Refurbished)

## Features

- Item Package Dimension: 11.599999988168L X 9.299999990514W X 4.49999999541H Inches
- Item Package Weight - 2.55074837134 Pounds
- Item Package Quantity - 1
- Product Type - Landline Phone

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07HHGZNNR |
| Best Sellers Rank | #176,117 in Office Products ( See Top 100 in Office Products ) #178 in Renewed Office Products #220 in VoIP Phones |
| Brand | Cisco |
| Color | Black |
| Customer Reviews | 3.0 3.0 out of 5 stars (23) |
| Date First Available | September 19, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.46 pounds |
| Item model number | CP-7821-K9 |
| Manufacturer | CISCO |
| Manufacturer Part Number | CP-7821-K9 |
| Material Type | Plastic |
| Number of Items | 1 |
| Product Dimensions | 11 x 3 x 12 inches |

## Product Details

- **Brand:** Cisco
- **Colour:** Black
- **Telephone type:** Corded
- **Material:** Plastic
- **Power source:** Corded Electric
- **Dialler type:** Single Keypad
- **Item dimensions L x W x H:** 27.9 x 7.6 x 30.5 centimetres
- **Answering system type:** Digital
- **Item weight:** 1.12 Kilograms
- **Compatible devices:** Cisco on-premises, hosted, Spark Cloud, and third-party hosted call control platforms; Cisco Expressway

## Images

![Cisco CP-7821-K9 IP Phone - Black (Refurbished) - Image 1](https://m.media-amazon.com/images/I/71aCaBb-GPL.jpg)

## Questions & Answers

**Q: What type of lithium battery?**
A: No battery in this phone.  This is a POE VOIP telephone - it is not cordless.

**Q: They come with the back stands?**
A: yes they do

**Q: Does this model compatible with third-party pbx system like freepbx out-of-the-box?**
A: Hello Ethan,

The Cisco CP-7821 IP phone can work with third-party PBX systems when you replace the firmware with version 10.3(1). You will need to upgrade the firmware and use the SIP protocol only to support the third party PBX. However, this will not work out of the box and you have to upgrade the firmware. Please refer to the following guide to see step-by-step guide: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cuipph/7800-series/3pcc/english/release-notes/PA2D_BK_7C8E9902_00_7800-series-3pcc-rn-1031.html

Thanks

Thanks

**Q: Does this phone require additional license cost for any cisco proprietary controllers or software?**
A: Hello Ethan,

Yes, the IP Phone does require license. The Cisco IP Phone 7821 require a Basic User Connect License (UCL) in order to connect to Cisco Unified Communications Manager. You can refer to section Licensing in the product datasheet at https://www.cisco.com/c/en/us/products/collateral/collaboration-endpoints/unified-ip-phone-7800-series/data-sheet-c78-729488.html#Licensing

Thanks

## Frequently Bought Together

- Cisco CP-7821-K9 UC Phone 7821New Open Box (Renewed)
- Cisco CP-8861-K9 Corded VoIP Phone - Charcoal (Renewed)

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**Shop now:** [https://www.desertcart.lk/products/221396071-cisco-cp-7821-k9-ip-phone-black-refurbished](https://www.desertcart.lk/products/221396071-cisco-cp-7821-k9-ip-phone-black-refurbished)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-20*