After the firmware upgrade completes, the phone reboots automatically.
Limitations and Restrictions
Phone Behavior During Times of Network Congestion
Anything that degrades network performance can affect 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.
Access Cisco Bug
(bugs) are graded according to severity level. These release notes contain
descriptions of the following:
level 1 or 2 bugs
severity level 3 bugs
You can search for
problems by using Cisco Bug Search.
Before You Begin
To access Cisco Bug
Search, you need the following items:
To look for
information about a specific problem, enter the bug ID number in the Search for
field, then press
There are no severity 1, 2, and 3 defects open for the Cisco Unified IP Conference Phone 8831 Multiplatform Phones Firmware Release 9.3(4)SR3.
The following list contains the severity 1, 2, and 3 defects that are resolved for the Cisco Unified IP Conference Phone 8831 Multiplatform Phones Firmware Release 9.3(4)SR3.
For more information about an individual defect, you can access the online record for the defect by clicking the Identifier or going to the URL that is shown. 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, access Bug Toolkit as described in Access Cisco Bug Search.
CSCuy36600 Evaluation of 3pcc-beignet for glibc_feb_2016
CSCvb85696 Security fix for Linux Kernel Local Privilege Escalation (Dirty CoW)
CSCvf80221 CP-8831-3PCC Conference call has no audio
Documentation, Service Requests, and Additional Information
For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:
Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS Version 2.0.