User guide for Cisco 8811, 8841, 8851 and 8861 IP phones covering setup, features and troubleshooting.
This guide provides step‑by‑step instructions for installing and configuring Cisco 8811, 8841, 8851 and 8861 IP phones, including wiring, key functions and power‑saving modes. It also details call handling, advanced features such as conferencing, Bluetooth and USB accessories, and how to customize settings.
Additional sections cover troubleshooting, FCC compliance, safety information, warranty terms and how to access Cisco’s support resources. The manual is intended for users of Cisco Unified Communications Manager 10.5. This manual is written in Chinese.
| FCC compliance (Class A) | Meets FCC Part 15 for Class A digital devices |
|---|---|
| FCC compliance (Class B) | Meets FCC Part 15 for Class B digital devices |
The guide notes that not all active calls are shown on the phone screen, which is a normal behavior of the device.
The manual provides steps to redirect an incoming call using the phone’s soft keys.
While on a call, you can mute a ringing call by using the mute function described in the call management section.
The guide explains how to retrieve a held call through the call‑hold and retrieve functions.