Cisco 6851 Administration Guide

Before you begin
Access the phone administration web page. See Access the Phone Web Page, on page 92.
Procedure
Step 1 Select Voice > Phone.
Step 2 Under General, enter the Voice Mail Number.
Step 3 Click Submit All Changes. The phone reboots.
Configure Voice Mail for each Extension
Before you begin
Access the phone administration web page. See Access the Phone Web Page, on page 92.
Procedure
Step 1 Select Voice > Ext(n), where (n) is the number of an extension.
Step 2 In the Call Feature Settings section, enter the Voice Mail Server.
Step 3 (Optional) Enter the Voice Mail Subscribe Interval; the expiration time in seconds, of a subscription to a
voice mail server.
Step 4 Click Submit All Changes.
The phone reboots.
Configure the Message Waiting Indicator
You can configure the Message Waiting Indicator for separate extensions on the phone. The Message Waiting
Indicator lights based on the presence of new voicemail messages in the mailbox.
You can enable the indicator at the top of your IP phone to light when voice mail is left, or display a seeing
message waiting notification.
Before you begin
Access the phone administration web page. See Access the Phone Web Page, on page 92.
Procedure
Step 1 Select Voice > Ext(n), where (n) is the number of an extension.
Step 2 In the Call Feature Settings section, set the Message Waiting field to Yes to enable it.
Cisco IP Phone 6800 Series Multiplatform Phones Administration Guide
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Phone Administration
Configure Voice Mail for each Extension

Cisco 6851 Specifications

General

Network Protocols	SIP
Speakerphone	Yes
Bluetooth	No
Wi-Fi	No
USB Port	No
Display	3.5 inch grayscale display (396 x 162 pixels)
Ethernet	10/100 Ethernet
PoE	IEEE 802.3af
Audio	Wideband audio
Line Keys	4
Headset Port	RJ9
Supported Codecs	G.711, G.722, G.729, iLBC
Weight	0.9 kg