Cisco IP Phone 8851 User Manual

Cisco IP Phone 8851
Quick Start Guide
- Incoming call or voicemail indicator
- Line and feature buttons
- Softkeys
- Navigation
- Hold, Transfer, and Conference
- Speakerphone, Headset, and Mute
- Voicemail, Applications, and Directory
- Volume
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Use line and feature buttons to view calls on
a line, or access features such as Speed Dial.
Buttons illuminate to indicate status:
Your Phone
Line and Feature Buttons
Enter a number and pick up the handset
Place a Call
Press the flashing red line button, or pick up
the handset.
Answer a Call
1. Press the Hold button .
2. To resume a call from hold, press Hold
again.
Put a Call on Hold
1. Enter a number using the keypad.
2. Press Speakerphone .
Place a Call with the Speakerphone
1. From a call that is not on hold, press
Transfer .
2. Enter the person’s phone number.
3. Press Transfer again.
Transfer a Call to Another Person
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1. Press Applications .
2. Scroll and select Recents.
3. Select a line to view.
(All, Missed, Received, Placed)
View Your Recent Calls
1. from an active call, press Conference .
2. Select a second line and place the second
call.
3. Press Conference again to join the
calls.
Add Another Person to a Call
- Green, steady: Line ready
- Amber, steady: Line not registered
- Amber, flashing: Line registering
- Red, steady: Line in use
- Red, flashing: Incoming call
- Red, Pulsing: Line on hold
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Cisco IP Phone 8851 Specifications

General

Resolution	800 x 480 pixels
Audio	Wideband audio
Bluetooth Version	Bluetooth 3.0
Power	Power over Ethernet (PoE) or optional power adapter
Ethernet	10/100/1000
Protocols	SIP
Codec Support	G.711, G.722, G.729a, iLBC
Headset Jack	Yes
Wi-Fi	No
USB Ports	2 x USB 2.0
Lines	Up to 5 lines
Dimensions	229 x 257 x 40 mm (excluding foot stand)

Summary

Cisco IP Phone 8851 Overview

Your Phone Controls

Identifies key physical components and buttons on the Cisco IP Phone 8851.

Line and Feature Button Functions

Explains the visual indicators and functions of line and feature buttons.

Performing Calls on Cisco IP Phone 8851

Place a Call

Instructions for initiating a new call by dialing a number.

Answer a Call

How to respond to an incoming call using the phone.

Put a Call on Hold

Steps to temporarily suspend an active call and resume it.

Transfer a Call to Another Person

Procedure for redirecting an active call to a third party.

Add Another Person to a Call

Guide on conferencing multiple parties into an active call.

View Your Recent Calls

Accessing and reviewing call history logs on the phone.

Audio and Screen Adjustments

Mute Your Audio

Instructions for muting and unmuting the microphone during a call.

Adjust Volume

How to control handset, headset, speakerphone, and ringer volumes.

Change Ringtone

Steps to select and set a new ringtone for incoming calls.

Adjust Screen Brightness

Modifying the display brightness level for better visibility.

Adjust Screen Backlight

Configuring the duration for the screen's backlight timer.

Voicemail Management

Listen to Voice Messages

Instructions for accessing and listening to voicemail messages.

Voicemail Menu Options

Navigating the voicemail system for PIN, greetings, and forwarding.