Cisco Wireless IP Phone 8821 and 8821-EX Release Notes for Firmware Release 11.0(5)SR3
These release notes support the Cisco Wireless IP Phone 8821 and 8821-EX Firmware Release 11.0(5)SR3.
The following table describes the systems and versions that the phone requires.
System |
Minimum Version |
Recommended Versions |
---|---|---|
Cisco Unified Communications Manager |
9.1(2) |
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 |
10.5 |
11.0, 11.5, 11.7, and later |
Cisco AireOS Wireless LAN Controller and Cisco Lightweight Access Points |
8.0.121.0 |
8.0.152.0, 8.2.170.0, 8.3.150.0.0, 8.5.164.0, 8.8.130.0, 8.10.121.0 |
Cisco Catalyst IOS XE Wireless LAN Controller and Cisco Lightweight Access Points |
16.12.1s |
16.12.2s |
Cisco Meraki Access Points |
MR 25.9, MX 13.33 |
MR 26.6.1, MX 14.40 |
Cisco Autonomous Access Points |
12.4(21a)JY |
12.4(25d)JA2, 15.2(4)JB6, 15.3(3)JFPJ3 |
For more information on wireless access points, see the Cisco Wireless IP Phone 8821 and 8821-EX Wireless LAN Deployment Guide in: https://www.cisco.com/c/en/us/support/collaboration-endpoints/unified-ip-phone-8800-series/products-implementation-design-guides-list.html
Related Documentation
Cisco Wireless IP Phone 882x Series Documentation
Refer to publications that are specific to your language, phone model, and call control system. Navigate from the following documentation URL:
The Deployment Guide is located at the following URL:
Cisco Unified Communications Manager Documentation
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:
Cisco Unified Communications Manager Express Documentation
See the publications that are specific to your language, phone model and Cisco Unified Communications Manager Express release. Navigate from the following documentation URL:
New and Changed Features
This release contains no new or changed features.
Installation
Installation Requirements
Before you install the firmware release, you must ensure that your Cisco Unified Communications Manager is running the latest device pack. The applicable device packs are released after the firmware release. After you install a device pack on the Cisco Unified Communications Manager servers in the cluster, you need to reboot all the servers.
Note |
If your Cisco Unified Communications Manager does not have the required device pack to support this firmware release, the firmware may not work correctly. |
For information on the Cisco Unified Communications Manager Device Packs, see https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/compat/matrix/CMDP_BK_CCBDA741_00_cucm-device-package-compatibility-matrix.html.
Install Firmware Release 11.0(5)SR3 on Cisco Unified Communications 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.
Procedure
Step 1 |
Go to the following URL: |
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Step 2 |
Choose Wireless IP Phone 8821 or Wireless IP Phone 8821-EX. |
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Step 3 |
Choose Session Initiation Protocol (SIP) Software. |
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Step 4 |
In the Latest Releases folder, choose 11.0(5)SR3. |
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Step 5 |
Select the firmware file, click the Download or Add to cart button, and follow the prompts. Firmware file: cmterm-8821-sip.11-0-5SR3-2.k3.cop.sgn
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Step 6 |
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. |
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Step 7 |
Follow the instructions in the readme file to install the firmware. |
Install Firmware Release 11.0(5)SR3 on Cisco Communications Manager Express
You must download the Cisco Wireless IP Phone 8821 firmware image file from the software download center.
For information on Cisco Unified Communications Manager Express support, see http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucme/feature/phone_feature/phone_feature_support_guide.html.
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:
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucme/admin/configuration/manual/cmeadm.html
Procedure
Step 1 |
Go to the following URL: |
Step 2 |
Choose Wireless IP Phone 8821 or Wireless IP Phone 8821-EX. |
Step 3 |
Choose Session Initiation Protocol (SIP) Software. |
Step 4 |
Choose 11.0(5)SR3 in the Latest Releases folder. |
Step 5 |
Click Download or Add to cart and follow the prompts. The file to download is cmterm-8821.11-0-5SR3-2.zip |
Step 6 |
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
-
Administrative tasks, such as an internal port scan or security scan
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Attacks that occur on your network, such as a Denial of Service attack
Health-Care Environment Use
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 (Unified CM). Change the field from the default of 100 to 20.
The Unified CM device packs (October 2017 and later) have the default set to 20.
For more information, look at CSCvc14605 using https://tools.cisco.com/bugsearch.
TLS 1.2 Tunnel Limitation with ISE 2.0 to 2.3
To support a TLS 1.2 tunnel between the phone and the Cisco Identity Service Engine (ISE) server, the ISE patch to resolve CSCvm03681 must be applied. This patch is required for ISE servers running Release 2.0 to 2.3; ISE Release 2.4 and later include the patch.
Caveats
View Caveats
You can search for caveats using the Cisco Bug Search tool.
Known caveats (bugs) are graded according to severity level, and can be either open or resolved.
Before you begin
To view caveats, you need the following items:
-
Internet connection
-
Web browser
-
Cisco.com user ID and password
Procedure
Step 1 |
Perform one of the following actions:
|
Step 2 |
When prompted, log in with your Cisco.com user ID and password. |
Step 3 |
(Optional) Enter the bug ID number in the Search for field, then press Enter. |
Open Caveats
The following list contains the severity 1, 2, and 3 defects that are open for the Cisco Wireless IP Phone 8821 that use Firmware Release 11.0(5)SR3.
For more information about an individual defect, you can access the online record for the defect from the Bug Search Toolkit. You must be a registered Cisco.com user to access this online information.
Because defect status continually changes, the list reflects a snapshot of the defects that were open at the time this report was compiled. For an updated view of open defects or to view specific bugs, access the Bug Search Toolkit as described in View Caveats.
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CSCvq76705 Observe battery level 99%~100% floating issue after fully charged
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CSCvq80441 Cisco 8821 Wireless IP Phone Key Negotiation of Bluetooth Vulnerability
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CSCvr30314 Multiple Vulnerabilities in linux kernel (CVE-2019-10638 and CVE-2019-10639)
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CSCvr54353 Linux Kernel CVE (CVE-2019-16413 to CVE-2019-3874)
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CSCvr57950 Phone continues blinking amber after shared line answers 2nd incoming call
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CSCvr70039 Vulnerability in linux kernel (CVE-2019-11190)
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CSCvr71242 Vulnerability in linux kernel (CVE-2019-11599)
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CSCvr71414 Vulnerability in linux kernel (CVE-2019-15214)
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CSCvr76650 Vulnerability in linux kernel (CVE-2019-15916)
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CSCvr87703 Vulnerability in linux kernel (CVE-2019-15666)
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CSCvr89188 Vulnerability in linux kernel (CVE-2019-16994)
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CSCvr94805 Vulnerability in linux kernel (CVE-2019-15927)
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CSCvs22379 Single click on green button sometimes triggers Redial
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CSCvs33435 Linux Kernel Use-After-Free Vulnerability CVE-2017-10661
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CSCvs61484 Multiple Vulnerabilities in linux_kernel CVE-2018-10879
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CSCvs63233 Multiple Vulnerabilities in linux_kernel CVE-2018-5344
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CSCvt00409 Multiple Vulnerabilities in zlib 1.2.8
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CSCvt08482 Multiple Vulnerabilities in linux_kernel CVE-2019-19252
Resolved Caveats
The following list contains the severity 1, 2, and 3 defects that are resolved for the Cisco Wireless IP Phone 8821 that use Firmware Release 11.0(5)SR3.
For more information about an individual defect, you can access the online record for the defect from the Bug Search Toolkit. You must be a registered Cisco.com user to access this online information.
Because 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 resolved defects or to view specific bugs, access the Bug Search Toolkit as described in View Caveats.
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CSCvs78272 Wireless IP Phone 8821 /CGI/CallInfo stack buffer overflow
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CSCvs78281 Wireless IP Phone 8821 /deviceconfig/setActivationCode stack buffer overflow
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CSCvs82268 8821 phones not processing commas when dialing from Corporate Directory
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.
Unified Communications Manager Endpoints Locale Installer
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.
To access the Locale Installer required for a release, access https://software.cisco.com/download/navigator.html?mdfid=286037605&flowid=46245, navigate to your phone model, and select the Unified Communications Manager Endpoints Locale Installer link.
For more information, see the documentation for your particular Cisco Unified Communications Manager release.
Note |
The latest 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.
Note |
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. |
You and your users should check the Cisco website for updated user guides and download the PDF files. You can also make the files available to your users on your company website.
Tip |
You may want to bookmark the web pages for the phone models that are deployed in your company and send these URLs to your users. |
Cisco IP Phone Firmware Support Policy
For information on the support policy for phones, see https://cisco.com/go/phonefirmwaresupport.