Use these release notes with the following Cisco IP Phone 6800 Series Multiplatform Phones running Firmware Release 11.2(3)SR1.

  • Cisco IP Phone 6821 Multiplatform Phones

  • Cisco IP Phone 6841 and 6851 Multiplatform Phones

The following table describes the individual phone requirements.


Support Servers

Cisco IP Phone 6800 Series Multiplatform Phones

BroadSoft BroadWorks 22.0

MetaSphere CFS version 9.4

Asterisk 11.0

New and Changed Features

Activation Code Onboarding

If your network is configured for Activation Code Onboarding, your administrator generates and provides each user with a unique 16-digit activation code. The user enters the activation code, and the phone automatically registers.

Activation codes can be used only once, and expire after a certain time. If a user enters an expired code, the phone displays Invalid activation code on the screen. If this happens, the administrator provides the user with a new code.

This feature keeps your network secure because the phone can't register until the user enters a valid activation code.

You can change existing phones to use this feature. To do this, reset the phone to the factory settings. After the factory reset and bootup, the phone registers when the user enters the activation code.

Where to Find More Information

  • Cisco IP Phone 6800 Series Multiplatform Phones Administration Guide

  • Cisco IP Phone 6800 Series Multiplatform Phones User Guide

  • Cisco IP Phone 6800 Series Multiplatform Phones Provisioning Guide

Audio Performance for Overload Point 9dB

Audio overload point specifies the signal level at which the audio codec is overloaded. For a phone that supports audio performance for 9dB overload point for G.722 codec, you can configure the phone using the Audio_Overload_Point_9dB parameter. Locate the parameter in your phone's configuration file. The default setting is No. For the phones that use ETSI standards and are required to support overload point of 9dB for G.722 codec, set this parameter to Yes. Otherwise, keep the default setting. When set to No, the audio overload point is 3.17dB acrosss the network for consistent power for both the narrow band and the wide band.

Settings example:

<!--  Audio Compliance  -->
<Compliant_Standard ua="rw">ETSI</Compliant_Standard>
<!--  available options: TIA|ETSI  -->
<Audio_Overload_Point_9dB ua="rw">Yes</Audio_Overload_Point_9dB>
<!--  available options: No|Yes  -->

The Audio_Overload_Point_9dB parameter is available for the following phones:

  • Cisco IP Phone 6841 Multiplatform Phones

  • Cisco IP Phone 6851 Multiplatform Phones

Upgrade the Firmware

You can upgrade the phone firmware with TFTP, HTTP, or HTTPS. After the upgrade completes, the phone reboots automatically.


Step 1

Click this link:

On the Software Download web page that is displayed, ensure that IP Phone 6800 Series with Multiplatform Firmware is selected in the middle pane.

Step 2

Select your phone model in the right pane.

Step 3

On the next page that is displayed, select Multiplatform Firmware.

Step 4

Under Latest Release, select 11.2.3 MSR1-1.

Step 5

(Optional) Place your mouse pointer on the file name to see the file details and checksum values.

Step 6

Download the file.

Step 7

Click Accept License Agreement.

Step 8

Unzip the file and place the files in the appropriate location on your upgrade server.

The appropriate location is the TFTP, HTTP, or HTTPS download folder, depending on the protocol that you want to use for the upgrade.

Step 9

Upgrade the phone firmware with one of these methods.

  • Upgrade the phone firmware from the phone administration web page:

    1. On the phone administration web page, go to Admin Login > Advanced, Voice > Provisioning > Firmware Upgrade.

    2. In the Upgrade Rule field, enter the load file URL as described below.

      Load file URL format:

      <upgrade protocol>://<upgrade server ip address>[:<port>]>/<path>/<file name>.loads

    3. Click Submit All Changes.

  • Upgrade the phone firmware directly from your web browser:

    In the address bar of your web browser, enter the phone upgrade URL as described below.

    Phone upgrade URL format:

    <phone protocol>://<phone ip address[:port]>/admin/upgrade?<load file URL>

    Load file URL format:

    <upgrade protocol>://<upgrade server ip address>[:<port>]>/<path>/<file name>.loads



Specify the <file name>.loads file in the URL. The <file name>.zip file contains other files.

Limitations and Restrictions

Phone Behavior During Times of Network Congestion

Anything that degrades network performance can affect phone voice and in some cases can cause a call to drop. Sources of network degradation can include, but are not limited to, the following activities:

  • Administrative tasks, such as an internal port scan or security scan

  • Attacks that occur on your network, such as a Denial of Service attack

Caller Identification and Other Phone Functions

Caller identification or other phone functions have not been verified with third-party applications for the visually or hearing impaired.


View Caveats

You can search for caveats (bugs) with the Cisco Bug Search tool.

Known caveats are graded according to severity level, and are either open or resolved.

Before you begin

You have your user ID and password.


Step 1

Click one of the following links:

Step 2

When prompted, log in with your user ID and password.

Step 3

(Optional) For information about a specific caveat, enter the bug ID number (CSCxxnnnnn) in the Search for field, and press Enter.

Open Caveats

The following list contains the severity 1, 2, and 3 defects that are open for the Cisco IP Phone 6800 Series Multiplatform Phones that use Firmware Release 11.2(3)SR1.

For more information about an individual defect, you can access the online history for the defect by accessing the Bug Search tool and entering the Identifier (CSCxxnnnnn). You must be a registered user to access this defect information.

Because the defect status continually changes, the list reflects a snapshot of the defects that were resolved at the time this report was compiled. For an updated view of the resolved defects or to view specific bugs, access the Bug Search Toolkit as described in the View Caveats.

  • CSCvk71607 Phone UI restarts if connect pc port to pc when switch port in trunk mode

  • CSCvm38864 Tone after press park, conf, blindxfer, or transfter softkey is not smooth