Refer to publications that are specific to your language, phone model, and call control system. Navigate from the following documentation URL:

https://www.cisco.com/c/en/us/support/collaboration-endpoints/unified-ip-phone-8800-series/tsd-products-support-series-home.html

The Deployment Guide is located at the following URL:

https://www.cisco.com/c/en/us/support/collaboration-endpoints/unified-ip-phone-8800-series/products-implementation-design-guides-list.html

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:

https://www.cisco.com/c/en/us/support/unified-communications/unified-communications-manager-callmanager/tsd-products-support-series-home.html

See the publications that are specific to your language, phone model and Cisco Unified Communications Manager Express release. Navigate from the following documentation URL:

https://www.cisco.com/c/en/us/support/unified-communications/unified-communications-manager-express/tsd-products-support-series-home.html

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(4)SR2.

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.

• CSCuw10789 Configuration: RTP/sRTP Port Range Configuration

• CSCuz22603 Phone may fail to update trust list files after reset

• CSCvd72816 RSSI value for connected AP is slow to update when phone is in Single AP mode

• CSCvg59066 Speed Dial & BLF SD are not working when on call

• CSCvh15285 DNS info got lost after phone power off/on when DHCP in off status

• CSCvh27418 Transfer soft key shall be grey before C answer while semi-transfer is diabled.

• CSCvh27809 Focus and soft key error while press up-down hard key during conference

• CSCvh31648 Call should be disconnected while BT headset out of range for more than 30 seconds

• CSCvh38919 8821: Speaker fail to ring when insert headset

• CSCvh40589 Call disconnected while power off Jabra MOTION BT headset during call

• CSCvh47665 No Secure tone played on protected phones while enable speaker

• CSCvh50578 Pressing red button can not cancel new call when PTT is opened

• CSCvh50994 No error toast prompts while cBarge failed due to maximum participants has been reached

• CSCvh55508 WFi chip is not waking up at regular interval in single AP mode

• CSCvh64535 Random roaming timeouts seen on conducted roaming testbed

• CSCvh72297 Voice mail speed dial is not working if services provisioning set to External URL

• CSCvh74215 No \"CAL Text#\" logo displayed in incoming call toast & call details

• CSCvh82172 8821 Not send DHCP decline message to DHCP server when duplicated ip detected

• CSCvh89574 Pressing Green button to make a call - missing in PD/CD & Line View

• CSCvh94433 cp8821Ôºöno \"CAL Text#1\" displayed in call details when do CAL test

• CSCvh99185 WLAN diags AP details only shows channels 36-48

• CSCvi16796 Phone does not use the configured SIP phone port to register with CUCM

• CSCvi16962 Phone dials out from line 2 even if toggle up to line 1 before dialing out

• CSCvi24947 Display will not off while phone has one-way incoming intercom call

• CSCvi66235 PB: When configuring a Favorite, middle button can dial number by mistake when in Contact details

• CSCvi66773 PB: Pressing green button should not bring up call view when highlight on Unassigned

• CSCvi68937 8821 advertises dongle MAC instead of phone MAC via CDP

• CSCvi74261 Phone may crash if disable-enable Wi-Fi profile via admin webpage

• CSCvi78358 8821 can't save debug command after reset or power-cycle

• CSCvi80433 Phone doesn't process the EAP request frame, causing de-registration

• CSCvj02218 Park resume is greyed out in 8821 registered in CME

• CSCvj07546 Phone de-registered due to re-IP during overnight testing

• CSCvj23342 Call could be dropped when OOR more than 1 minute

• CSCvj31950 Intermittent \"Device or resource busy\" can still happen

• CSCvj42007 DUT don't vibrate sometimes when pickup call with DND enable

• CSCvj42039 Voice volume setting of BT headset hasn't been saved after headset power off and on

• CSCvj43956 New call soft key not work while focus on BLF speed dial

• CSCvj44014 Back from intercom call details, phone's UI turn to blank

• CSCvj44036 The cancel&dial softkey disappeared in callback indication UI when ending another incoming call

• CSCvj45498 Ringer shouldn't play thu headset in Australia network locale when inserting headset during ringing

• CSCvj46981 \"Battery charging\" toast not display when power charging with USB cable.

• CSCvj47001 Ringer for incoming call switches to headset after docked when ringer output is set to speaker

• CSCvj53208 White screen flash while charging powered off phone

• CSCvj54504 Blank call view after end the call on one line and then resume call on another line

• CSCvj54731 Should delay ringer output for 4 sec if 2nd call comes in immediately after 1st call is ended

• CSCvj55168 ip can be pinged after dhcp address released through \"wifi interface\"

• CSCvj55253 Can't move focus to other lines with nav-button when phone is in dialing.

• CSCvj64735 Voicemail icon shows on the second line and intercom line even there is only vm on first line

• CSCvj70382 Back to use correct username from wrong one, phone failed to connect to Auto AP with EAP-FAST

• CSCvj75229 Phone does not re-connect to first WLAN profile after disable/enable

• CSCvj84131 Decline not work on the line not configured to VM, when another line configured to VM

• CSCvj88754 Failed to Log Out from personal directory

• CSCvj94399 Sometimes(90%) ringer is very small in hold reversion state when ringer volume is maximized

• CSCvj94952 On Phone's LCD, the DN has not been changed after access hCluster successfully with EMCC method

• CSCvj96861 Application Button still works when DUT is not idle Although button priority is low

• CSCvk03109 When DNR is enabled and a higher priority MLPP call comes in, the ringer is not played on the phone.

• CSCvk09649 Incoming call will be auto answered when connect bluetooth headset to phone and hold the first call.

• CSCvk22665 8821 display comes on sometimes when on call with shared line

• CSCvk25979 Phone eventually not able to receive auth response

• CSCvk30176 No response while press conf soft key after merge all on secured SRST

• CSCvk33875 Screenpng does not work when 8821 is sleeping

• CSCvk59324 CCKM roaming failure then call dropped on roaming stress test bed

• CSCvk65315 Download application multiple times when press the application button

• CSCvm04637 Continuous scan busy is reproducible on Conducted test bed with channel setting 36/44@20Mhz

• CSCvm16421 EAP authentication triggered by wpa_supplicant got interrupted and causing de-registration

• CSCvm23580 8821 dhcp exit and reboot after switching wlan profiles

• CSCvm37991 Phone will not remove stale entry in neighbor list while in \"auto-scan\" mode

• CSCvm40695 4-way handshake got interrupted by reassoc request thereby causing de-registration

• CSCvm46026 8821 : Java crash and connectivity lost

• CSCvm47856 Multiple Vulnerabilities in linux

• CSCvm50336 CIAM alerts of Linux/Linux for cygnus: CVE-2018-1130, CVE-2018-11506, CVE-2018-11508

• CSCvm50340 CIAM alerts of Linux/Linux for cygnus for all phone models

• CSCvm50348 Multiple Vulnerabilities in linux, port CSCvk55910 to 8821

• CSCvm50349 Multiple Vulnerabilities in linux, port CSCvm11633 to 8821

• CSCvm50527 Linux Kernel Kerberos RxRPC Ticket Decoding Local Privilege Escalati ...

• CSCvm55587 Java crashed when accessing phone admin webpage

• CSCvm55729 Phone can't associate to AP after inter-profile roaming, enable new profile after OOR

• CSCvm58866 4-way handshake failure due to invalid MIC in M2

• CSCvm59233 cURL and libcurl NTLM Password Buffer Overflow Vulnerability (CVE-2018-14618)

• CSCvm60777 Linux Kernel alarm_timer_nsleep() Function Integer Overflow Vulnerability (CVE-2018-13053)

• CSCvm66028 Phone will eventually loose WiFi when roaming between 2 AP's set at 80MHz/40MHz

• CSCvm69293 Network configuration info not displayed on current wlan profile

• CSCvm69529 CDP shows previous IP for WLAN interface via CDP instead of wired USB dongle interface when docked

• CSCvm70313 Unable to reconnect to wifi after undock a station with ethernet over USB then enable wifi profile

• CSCvm70501 8821 should not download WLAN config file from hCluster after EMCC login

• CSCvm74978 8821 phone sometimes couldn't receive the EAP identity request on 2.4G JFW test bed.

• CSCvm75499 Phone will bypass higher priority profiles enabled when profile 1 is disabled

• CSCvm75535 Phone will not connect to 2.4GHz enabled WiFi profile from a 5GHz enabled WiFi profile vice versa

• CSCvm85526 Phone crashed when DHCP option 66 field configured with MaxLength

• CSCvm87368 Phone can't get ip address when DHCP option 150 field configured with MaxLength

• CSCvm91129 WLAN power mode not correct when making calls via XSI

• CSCvm91396 No beep tone for hold revert while the other line in RIU status

• CSCvm91475 Can't answer incoming call for a while when hold reversion is 20s with about 20 call sessions

• CSCvm92798 Multiple Vulnerabilities in linux

• CSCvm92833 Linux Kernel MIDI Driver Local Privilege Escalation Vulnerability (CVE-2018-10902)

• CSCvm94269 DTIM period in WLAN Diags shows as 3 sometimes

• CSCvm95451 XMLSoft libxml2 xmlXPathCompOpEval() Function NULL Pointer Dereference Vulnera... (CVE-2018-14404)

• CSCvm95611 XML message does not display on lock screen if http url priority is 1 or 2

• CSCvm98027 GreenKey failed to work when setting phone to offhook dialing mode

• CSCvm99883 \"Feature is unavailable\" pops up on recipient phone UI on CME

• CSCvn04670 To define/implement new status message for 8821 battery drain to power off

• CSCvn04676 8821: Misleading unregistration reason code when 8821 is manually powered off

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(4)SR2.

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.

• CSCvi16877 Phone always sends keep-alive every 92 seconds regardless of keep-alive timer configuration

• CSCvi50362 Transferor didn't turn to idle status after Consultative Transfer finished over SRST

• CSCvj58595 Phone lost connection to WLAN then FW stuck in unresponsive state

• CSCvk49252 Memory leak each time to apply config file downloaded

• CSCvk52958 Check in WLAN firmware release 6.50.0.16

• CSCvk61217 Check in WLAN firmware release 6.50.0.18

• CSCvk65204 PRT should not trigger fresh/full association

• CSCvk73764 Phone unable to connect to BTheadset after phone power cycle

• CSCvm01072 Bluetooth Pairing Protocols - ECDH Parameters Insufficient Validation Vulnerability (CVE-2018-5383)

• CSCvm37965 Phone not scanning when on call in \"auto-scan\" mode

• CSCvm81319 Vibrate URI doesn't execute if \"Vibrate:\" is sent to the 8821 phone