Cisco Wireless IP Phone 8821 Release Notes for Firmware Release 11.0(3)SR4
These release notes support the Cisco Wireless IP Phone 8821 Firmware Release 11.0(3)SR4.
The following table describes the systems and versions that the phone requires.
Cisco Unified Communications Manager
10.5(2), 11.0(1), 11.5(1), and later
Cisco Unified Communications Manager Express
10.5 through Fast Track
11.0, 11.5, 11.7 (native support), and later
Cisco Unified Survivable Remote Site Telephony
11.0, 11.5, 11.7, and later
Cisco Wireless LAN Controller
18.104.22.168, 22.214.171.124, 126.96.36.199
Cisco IOS Access Points (Autonomous)
12.4(25d)JA2, 15.2(4)JB6, 15.3(3)JE
New and Changed
The following sections describe the features that are new or have
changed in this release.
Some features may require the installation of a Cisco Unified
Communications Manager Device Package. Failure to install the Device Package
before the phone firmware upgrade may render the phones unusable.
with the Firmware Release
The following sections describe the features available with the Firmware
OPUS Codec Support
The Cisco Wireless IP Phone 8821 supports the OPUS codec, starting with Firmware Release 11.0(3)SR4. The OPUS codec provides improved speech and music transmission.
Where to Find More Information
Cisco Wireless IP Phone 8821 and 8821-EX Administration Guide for Cisco Unified Communications Manager
Bulk Deployment Utility
The Bulk Deployment Utility (BDU) for the Cisco Wireless IP Phone 8821 and 8821-EX can be used for initial deployment or after the phones have been deployed. The BDU provides quick provisioning and deployment when unique 802.1x accounts are used with EAP-FAST, PEAP-GTC, or PEAP-MSCHAPV2 or when a common set of credentials are used by all phones (for example, PSK or a single 802.1x account).
The BDU requires Firmware Release 11.0(3)SR4 or later on the phones.
This version of the BDU is not the same as the BDU for the Cisco Unified Wireless IP Phone 792x Series.
See the Cisco Unified
Communications Manager Documentation Guide and other publications that are specific to your Cisco Unified
Communications Manager release. Navigate from the following documentation URL:
Before you install the firmware release, you must ensure that your Cisco Unified Communications Manager is running the latest device pack. After you install a device pack on the Cisco Unified Communications Manager servers in the cluster, you need to reboot all the servers.
If your Cisco Unified Communications Manager does not have the required device pack to support this firmware release, the firmware may not work correctly.
Install Firmware Release 11.0(3)SR4 on Cisco Unified Commmunications Manager
Before you can use the phone firmware release on the Cisco Unified Communications Manager, you must install the latest Cisco Unified Communications Manager firmware on all Cisco Unified Communications Manager servers in the cluster.
If you added the firmware file to the cart, click the Download Cart link when you are ready to download the file.
Click the + next to the firmware file name in the Download Cart section to access additional information about this file. The hyperlink for the readme file is in the Additional Information section, which contains installation instructions for the corresponding firmware.
Follow the instructions in the readme file to install the firmware.
Install Firmware Release 11.0(3)SR4 on Cisco Commmunications Manager Express
You must download the Cisco Wireless IP Phone 8821 firmware image file from the software download center.
For more information about this procedure, refer to the "Install and Upgrade Cisco Unified CME Software" chapter in the Cisco Unified Communications Manager Express System Administrator Guide at this URL:
Click Download or Add to cart and follow the prompts.
The file to download is cmterm-8821.11-0-3SR4-3.zip
Extract the files from the zip file, manually copy them to the Cisco Unified Communications Manager Express TFTP server (router flash), and enable them for TFTP.
Limitations and Restrictions
Phone Behavior During Times of Network Congestion
Anything that degrades network performance can affect Cisco IP Phone voice and video quality, 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
This product is not a
medical device and uses an unlicensed frequency band that is susceptible to
interference from other devices or equipment.
Recording Tone Volume Limitation
If you use the recording feature, we recommend that you change the Recording Tone Local Volume configured in Cisco Unified Communications Manager. Change the field from the default of 100 to 20.
The CUCM device packs (October 2017 and later) have the default set to 20.
When prompted, log in with your Cisco.com user ID and password.
Enter the bug ID number in the Search for field, then press Enter.
Cisco Unified Communication Manager Public Keys
To improve software integrity protection, new public keys are used to sign cop files for Cisco Unified Communications Manager Release 10.0.1 and later. These cop files have "k3" in their name. To install a k3 cop file on a pre-10.0.1 Cisco Unified Communications Manager, consult the README for the ciscocm.version3-keys.cop.sgn to determine if this additional cop file must first be installed on your specific Cisco Unified Communications Manager version. If these keys are not present and are required, you will see the error "The selected file is not valid" when you try to install the software package.
By default, Cisco
IP Phones are set up for the English (United States) locale. To use the Cisco
IP Phones in other locales, you must install the locale-specific version of the
Unified Communications Manager Endpoints Locale Installer on every Cisco
Unified Communications Manager server in the cluster. The Locale Installer
installs the latest translated text for the phone user interface and
country-specific phone tones on your system so that they are available for the
Cisco IP Phones.
For more information, see the documentation for your particular Cisco Unified Communications Manager release.
Locale Installer may not be immediately available; continue to check the
website for updates.
Cisco IP Phone Documentation Updates on Cisco Unified Communications Manager
The Cisco Unified Communications Manager Self Care Portal (Release 10.0 and later) and User Options web pages (Release 9.1 and earlier) provide links to the IP Phone user guides in PDF format. These user guides are stored on the Cisco Unified Communications Manager and are up to date when the Cisco Unified Communications Manager release is first made available to customers.
After a Cisco Unified Communications Manager release, subsequent updates to the user guides appear only on the Cisco website. The phone firmware release notes contain the applicable documentation URLs. In the web pages, updated documents display "Updated" beside the document link.
The Cisco Unified Communications Manager Device Packages and the Unified Communications Manager Endpoints Locale Installer do not update the English user guides on the Cisco Unified Communications Manager.
Administrators and users should check the Cisco website for updated user guides and download the PDF files. Administrators can also make the files available to the users on their company website.
Administrators may want to bookmark the web pages for the phone models that are deployed in their company and send these URLs to their users.