Release Notes for Cisco PhoneOS Phones 9800 and 8875
Check these release notes for Cisco Desk Phone 9800 Series and Cisco Video Phone 8875 running PhoneOS 3.4(1).
The following table describes the individual phone requirements.
Phone |
Platform |
Support requirements |
---|---|---|
Cisco Desk Phone 9800 Series Cisco Video Phone 8875 | Cisco BroadWorks |
Cisco BroadWorks 24.0 or later |
Cisco Unified Communications Manager |
Cisco Unified Communications Manager 12.5(1) or later Note: For PhoneOS 3.2 and later, the features delivered in UCM Device Packages require UCM 14 or later Cisco Unified Communications Manager DST Olsen version D or later SRST 8.0 (IOS load 15.1(1)T) or later Cisco Expressway 12.5.4 or later |
- High Assurance SUDI CA: https://www.cisco.com/security/pki/certs/hasudi.pem
- Cisco Root CA 2099: https://www.cisco.com/security/pki/certs/crca2099.pem
April 29, 2025—PhoneOS 3.4(1) release
This release firmware provides the following new and enhanced features for Cisco Desk Phone 9800 Series and Cisco Video Phone 8875:
Feature name | Webex Calling | BroadWorks | Unified CM |
---|---|---|---|
Onboarding | |||
NFC onboarding enhancements (for 9800 only) | ✓ | ✓ | ✓ |
User settings preservation | ✓ | ✓ | |
Calling features | |||
Group call pickup notifications | ✓ | ||
Cloud feature | |||
Hot Desking enhancements | ✓ | ||
Meeting features | |||
Webex account login for calendar meeting | ✓ | ||
Webex in-meeting summary (for 9861/9871/8875 only) | ✓ | ||
Customization features | |||
Configurable line key labels | ✓ | ||
New settings for the Action button (for 9800 only) | ✓ | ✓ | ✓ |
User experience enhancements | |||
Inline call label or session (for 9841/9851/9861 only) | ✓ | ✓ | |
Sustainability | |||
A new parameter for power saving (Office Hours) | ✓ | ✓ | ✓ |
Security | |||
Multilevel Precedence and Preemption (MLPP) improvement | ✓ | ||
TLS 1.3 support | ✓ | ✓ | ✓ (since 3.2.1) |
Backward compatibility with WPA (for 9861/9871/8875 only) | ✓ | ✓ | ✓ |
Configuration management | |||
Migration of 8875 settings (for 8875 only) | ✓ | ||
Unified Communications (UC) | |||
Cisco Unified Mobility | ✓ |
New and changed features
The PhoneOS Release 3.4(1) delivers the following new features and enhancements:
For the phones (except for 9861NR and 9871NR) that support NFC, the NFC onboarding now can support more configurable items in the predefined NFC data payload. Before this release, you can only configure onboarding method and the related onboarding details. Now you can further configure the following:
- MAC address of the phone (only applicable when the NFC data is signed)
- Wi-Fi network access configurations (such as, SSID, user ID, password)
- Custom Certificate Authority (CA) rule
To secure the NFC onboarding info (Wi-Fi configurations and Custom CA rule) that is transmitted between NFC device and phone, only the following security levels are permitted:
- Signing
- Encryption + Signing
In addition to the configurations in the NFC data payload, users can receive the notification messages that indicate the phone is ready to scan during the onboarding process.
For more information about the feature, go to the following links:
The phone now can keep the user settings that are applied before the phone's Out-Of-Box (OOB) registration. Before this release, the user settings are cleared and reset to their factory settings automatically after the phone is registered.
Currently, this feature can preserve the following user settings:
- HTTP proxy settings
- 802.1X authentication state (Enabled or Disabled)
For more information about the feature, go to the following links:
If your administrator has made you a member of a pickup group, you can answer calls for your group members when they are busy or absent. If there are multiple calls queuing in a group, you can answer calls for any of your group members or for a specific coworker as per the configuration. If multiple calls are available for pickup, you'll answer the call that has been ringing for the longest time. You see alerts in both the front arc LED and top LED if your administrator configures the notificaiton alert for both the LEDs.
For configuring the LED alert type on Control Hub, see Configure the LED alert type for group call pickup.
The Hot Desking feature now supports sign-in via voice portal. Users can use the softkey or dial the Feature Access Code *30 to sign in to a workspace phone through voice portal authentication. By default, the Hot Desking sign in using voice portal option is enabled in the location-level and user-level configurations.
In addition to the ad-hot booking option, Hot Desking phones now support reservation through Cisco Spaces or third-party space booking applications. When a phone is reserved, the reservation details appear on the screen. Only the person who reserved it can sign in.
For more information, go to the following links:
You can scan a QR code displayed on the phone screen to sign in to a Webex cloud calendar service with a Webex account. After a successful sign-in, you can join a calendar meeting on the phone. The supported meeting types include Webex and Teams.
For more information about the feature, go to the following links:
Now the phone supports to generate the Webex meeting summaries by using Cisco AI Assistant. The AI Assistant can analyze the discussion during the meeting in order to provide the meeting minutes and action items.
On the phone, the meeting hosts or participants (if granted the permission) can start or stop the meeting summary.
Currently, only the hosts using the Webex App can grant the permission to the participants.
For more information about the feature, go to the following links:
You can configure the display format (number or name) of lines that display on the phone screen by using Control Hub.
The configured display format can be applied to the following:
- The primary line that displays at the top left corner of the phone screen
- All lines if the phone has multiple lines
- The secondary line label if it's enabled
- All lines on Key Expansion Module (KEM)
For more information about the feature, go to the following link:
The following enhancements have been introduced with this release:
-
Silent emergency call retrieval
A new parameter, Allow Silent Emergency Call Retrieval, is now available to control whether users can regain phone functionality during a silent emergency call. Previously, users has to wait for the call recipient to end the call. If this parameter is enabled, users can press any key to restore normal phone operation while maintaining the emergency call. The call audio remains silent unless the user increases the speaker volume using the Volume key.
-
A single trigger for multiple events
Administrators can specify multiple service destinations for the Action button to allow users to initiate multiple events with a single trigger. For example, if configured, pressing the button will not only place an emergency call but also send an alert message to other phones within the organization. This feature streamlines critical workflows, making it easier to respond quickly in certain situations.
For more information, go to the following links:
On Desk Phone 9841, 9851, and 9861 with multiple lines, you can enable the feature to minimize the call window (including incoming call, single call, calls list, new call, etc.) automatically to the inline call label. The inline call label includes the call session information, such as caller/callee name, number, call duration, call state, and call state relevant icons. When the feature is enabled, the status of other lines won't be blocked by the call window. Therefore, you can view the status of all lines on the phone when you have active calls.
This feature is also applicable for the lines on Key Expansion Module (KEM).
For more information about the feature, go to the following links:
A new parameter, Display Off During Office Hours, has been added to control whether the phone display turns off when the phone is inactive during office hours. This helps reduce power consumption.
For more information, go to the following links:
Multilevel Precedence and Preemption (MLPP) improvement
From this release, the phone that initiates the priority call with a router or translation pattern can also show the special notifications (flag icon + precedence level) on the phone screen. At the same time, the phone plays the precedence ringback tone.
For more information about the feature, go to the following links:
The phones registered to Webex Calling or BroadWorks now support the TLS up to the 1.3 version. Before this release, the maximum supported version of TLS is 1.2.
For more information about the feature, go to the following links:
You can enable the backward compatibility for the oldest version of Wi-Fi Protected Access (WPA). If enabled, the phone can connect to the wireless networks or access points that only support WPA. By default, the feature is disabled.
For more information about the feature, go to the following links:
The device-level configuration has been moved from
to . The device settings in Organization-level, Location-level configuration, and Templates have been also moved.For more information about how to configure 8875 phone setings on Control Hub, see Configure 9800 Series and 8875 Phones on Control Hub.
Cisco Unified Mobility offers a set of mobility-related features that allow users to interact with Unified Communications applications no matter where they may be, or which device they are using. Whether the device you are using is a home office phone, a dual-mode Cisco Jabber on iPhone or Android client over a WiFi connection, or a mobile phone from another cellular provider, you can still access Unified Communications features and have the call be anchored in the enterprise.
For more information about the feature, see Cisco Unified Mobility.
January 23, 2025—PhoneOS 3.3(1) release
This release firmware provides the following new and enhanced features for Cisco Desk Phone 9800 Series:
Feature name | PhoneOS version | Webex Calling | BroadWorks | Unified CM |
---|---|---|---|---|
Onboarding | ||||
NFC onboarding | 3.3.1 and later | Yes | Yes | Yes |
Call features | ||||
Cisco IP Manager Assistant | 3.3.1 and later | No | No | Yes |
Switch the operating mode | 3.3.1 and later | Yes | No | No |
Cloud feature | ||||
Faster Hot Desking sign-in | 3.3.1 and later | Yes | No | No |
Meeting features | ||||
In-meeting transcription (for 9861/9871) | 3.3.1 and later | Yes | No | No |
Teams meeting support | 3.3.1 and later | Yes | No | Yes (already supported in 3.1.1) |
Customization features | ||||
Action button (multiple triggers and HTTP post) | 3.3.1 and later | Yes | Yes | Yes |
Add speed dials locally (for 9871) | 3.3.1 | No | No | Yes |
Custom wallpaper and logo (for 9851/9861/9871) | 3.3.1 and later | Yes | Yes | Yes (already supported in 3.0.1) |
Custom wallpaper setting by XML files | 3.3.1 and later | No | No | Yes |
New supported languages | 3.3.1 and later | Yes | Yes | Yes |
User experience enhancements | ||||
Pagination on Cisco Desk Phone (for 9851/9861) | 3.3.1 and later | Yes | Yes | No |
User Preference Attribute | 3.3.1 and later | Yes | Yes | NA |
Serviceability | ||||
Headset upgrade on phone | 3.3.1 and later | Yes | Yes | Yes |
Phone reports in Control Hub | 3.3.1 and later | Yes | No | No |
Security | ||||
Device security insights | 3.3.1 and later | Yes | Yes | No |
HTTP proxy | 3.3.1 and later | Yes | Yes | No |
VPN | 3.3.1 and later | No | No | Yes |
New and changed features
The PhoneOS Release 3.3(1) delivers the following new features and enhancements:
Now the phone (except for none-radio model) supports the onboarding process via its NFC tag. By scanning the NFC tag with an app (for example, NFC Tools) running on a mobile phone, the onboarding information can be written to the phone in advance even before it boots up. When the phone boots up and connects to a network, the onboarding process starts automatically and chooses the path depending on the written information. In this way, the phones can be onboarded easily with zero touch for the phone users.
During the onboarding process, you can also scan the NFC tag to fill in the required information (for example, activation code or TFTP server address) if you don't want to manually enter the information on the phone.
For more information about the feature, go to the following links:
The Cisco IP Manager Assistant (Cisco IPMA) feature enables managers and their assistants to work together more effectively. Cisco IPMA supports two modes of operation: proxy line support and shared line support. Both modes support multiple calls per line for the manager.
For more information, go to the following links:
This feature allows you to manage the mode-based forwarding of the specified features on a line key. You can manually switch the operating mode of call queues on your phone. Hence, the incoming calls are effectively routed to different destinations based on the operating mode you've selected.
For more information, go to the following links:
The Hot Desking sign-in process has been optimized to reduce the processing time and remove the need for a device reboot.
The phone users now can open the closed captions to display the transcription of the dialogue during a Webex hybrid meeting.
For more information about the feature, go to the following links:
The Microsoft Teams meeting now is supported on the phone that is registered to Webex Calling. The Teams meetings can display in the Upcoming meeting and Calendar screens on the phone. Also, users can check details of the Teams meetings. Similar to the Webex meeting, users can directly join a Teams meeting by pressing or tapping the Join softkey or soft button (depending on the phone model).
For more information, go to the following links:
Users can add their own speed dials on the phone. The user-added speed dials can be edited and removed from the speed dial list. However, users can't update or remove the speed dials added remotely through Self Care Portal or by administrators in Cisco Unified Communications Manager.
For more information, see Manage speed dials.
The users can change the custom wallpaper or logo, or both, on the phone. As the administrator, you can customize or set up the wallpaper and logo from the Control Hub or phone web page.
For more information about the feature, go to the following links:
As the administrator, you can send an HTTP file that contains an XML body to apply the custom wallpaper on the target phones.
For more information about the feature, see Customize wallpaper by sending XML to the phone.
Phone now supports the following languages:
- Bulgarian
- Croatian
- Estonian
- Latvian
- Lithuanian
- Slovenian
- Welsh
For more information, see Change language for your phone.
Screen pagination increases the capacity of the phone and allows to add more extension lines and features on line keys, than the number of physical line keys.
For more information, see Pagination on Cisco Desk Phone 9851 and 9861.
User Preference Attribute
The user-pref attribute allows you to set some user preferred value to provide a seamless experience for your user. Users can make further changes from the phone or from the phone administration web page. Any parameter changed by user is marked as user modified with an attribute um. Any changes made by the user are preserved.
The user-pref attribute can be updated during provisioning using XML configurations delivered with the Profile Rule parameter.
For more information, see User Preference Attribute.
Your phone now support updating Cisco headsets. When you connect a Cisco headset to the phone, the phone automatically check for updates.
For Cisco Headset 520 and 530, the phone starts the upgrading process automatically.
For Cisco Headset 300 Series, 560, and 700 Series, you are prompted to start updating or postpone it.
For more information, see Upgrade Cisco headset firmware on phones.
Reports for phones are available in the Monitoring section in Control Hub that you can use to help track usage or solve issues for your devices in your organization.
For more information, see Reports for Your Cloud Collaboration Portfolio.
Now the phone supports to provide information about the security issues. If any security issues occur on the phone, you can view the detailed information from the Issues and diagnostics screen.
For more information about the feature, see Check device security status on the phone.
You can set up the phone to connect the Internet through a specified HTTP proxy server for security purposes or resovle some HTTP connection issues. The users can either set up a proxy server on the phone or from the phone web page.
For more information about the feature, go to the following links:
You can enable a VPN connection on the phone from the
. The established VPN connection doesn't require you to restart your phone.For troubleshooting purpose, you can view the VPN statistics from the Issues and diagnostics screen which includes detailed information about current, closed, and failed VPN connections.
For more information about the feature, go to the following links:
October 31, 2024—PhoneOS 3.2(1) release
This release firmware provides the following new and enhanced features for Cisco Desk Phone 9800 Series:
Feature name | PhoneOS version | Webex Calling | BroadWorks | Unified CM |
---|---|---|---|---|
Onboarding | ||||
MRA onboarding with domain service | 3.2.1 and later | No | No | Yes |
User credentials persistent for Expressway sign-in | 3.2.1 and later | No | No | Yes |
Calling features | ||||
Forced Authorization Code (FAC) and Client Matter Code (CMC) | 3.2.1 and later | No | No | Yes |
Multicast Paging Multicast Paging with XML Application Support | 3.2.1 and later | Yes | Yes | No |
Support for Call center agent's phone | 3.2.1 and later | Yes | Yes | No |
Switch for UDS directory service on Unified CM | 3.2.1 and later | No | No | Yes |
Top 360 and Front Arc LED for voicemails and missed calls | 3.2.1 and later | Yes | Yes | Yes |
Cloud features | ||||
Hot Desking sign-in and booking management | 3.2.1 and later | Yes | No | No |
Meeting features | ||||
Mute status sync in hybrid meeting | 3.2.1 and later | Yes | No | No |
Recoding indication in meeting | 3.2.1 and later | Yes | No | No |
Participant list | 3.2.1 and later | Yes | No | No |
Customization features | ||||
Action button supports for custom services | 3.2.1 and later | Yes | Yes | Yes |
More display languages on the phone | 3.2.1 and later | Yes | Yes | Yes |
Support for XML applications on phones on BroadWorks | 3.2.1 and later | No | Yes | No |
Accessibility features | ||||
Voice feedback | 3.2.1 and later | Yes | Yes | Yes |
Adjustable font size on phone screen | 3.2.1 and later | Yes | Yes | Yes |
Accessories supports | ||||
Cisco Headset USB-C Adapter support | 3.2.1 and later | Yes | Yes | Yes |
Serviceability | ||||
ThousandEyes integration | 3.2.1 and later | Yes | No | Yes |
Sustainability | ||||
New parameters for Office Hours | 3.2.1 and later | Yes | Yes | Yes |
Survivability | ||||
WxC outbound proxy survivability support | 3.2.1 and later | Yes | Yes | No |
Security | ||||
Assured Services SIP (AS-SIP) | 3.2.1 and later | No | No | Yes |
Certificate Authority Proxy Function (CAPF) with Elliptical Curve (EC) key support | 3.2.1 and later | No | No | Yes |
Custom Device Certificate on 802.1x | 3.2.1 and later | Yes | Yes | No |
Disabling speakerphone, headset, and handset | 3.2.1 and later | No | No | Yes |
Multilevel Precedence and Preemption (MLPP) | 3.2.1 and later | No | No | Yes |
Multi-server (SAN) Tomcat Certificate with Cisco UCM | 3.2.1 and later | No | No | Yes |
No password warning | 3.2.1 and later | Yes | Yes | No |
TLS client/server min version | 3.2.1 and later | No | No | Yes |
New and changed features
The PhoneOS Release 3.2(1) delivers the following new features and enhancements:
You can use the service domain onboarding with Mobile and Remote Access (MRA) when deploying your phones for remote users. When users choose and enter a valid service domain, they will be prompted to enter their user credentials for the MRA authentication.
For more information about the feature, go to the following links:
User login credentials can be stored on the phone after the user signs into the Expressway server for Mobile and Remote Access (MRA). If enabled, the users don't need to enter the credentials again even though the phone restarts.
This feature requires UCM 14 or later with Device Packages.
For more information about the feature, see Configure user credentials persistent for Expressway sign-in.
You can configure the phone to require the users to enter FAC or CMC, or both before they dial out a specific phone number. By using FAC and CMC, you can effectively manage call access and accounting. FAC regulates the types of calls that certain users can place, CMC assists with call accounting and billing for clients.
For more information about the feature, go to the following links:
You can set up multicast paging to allow the users to page to phones. The page can go to all phones or a group of phones in the same network. Any phone in the group can initiate a multicast paging session. Only the phones that listen for the paging group can receive the page.
In addition, you can configure the phones to receive pages from an XML server to optionally display an image or other UI elements. With this feature, you can invoke the XML service from multicast paging.
For more information about the feature, go to the following links:
Phone can now be enabled with Automatic Call Distribution (ACD) features. This phone acts as a call center agent's phone and can be used to trace a customer call, to escalate any customer call to a supervisor in emergency, to categorize contact numbers using disposition codes, and to view customer call details.
For more information, see Configure call center agent phone.
The User Data Service (UDS) is used as the default directory service for phone on Unified CM. You can disable the service either for all phones or for an individual phone if you don't use it. When disabled, users on the phone can't view the personal or corporate contacts provided by UDS.
This feature requires UCM 14 or later with Device Packages.
For more details, see Configure directory services for phones on Unified CM.
From this release, only the Top 360 LED lights up for the voicemails and missed calls. The Front Arc LED doesn't light up any more for the voicemails and missed calls.
By default, the Top 360 LED doesn't light up for the missed calls. You can enable the LED indication from the call control system.
For more information, go to the following links:
- LED indicators overview
- Parameters for phone settings on Control Hub (Webex Calling)
- Enable LED indication for missed calls (BroadWorks)
- Enable LED indication for missed calls (Unified CM)
The enhancements for the Hot Desking feature include the following:
-
Hybrid working users can sign in to Hot Desking enabled phones through either Webex App or a web browser on their mobile devices.
-
Administrators can extend user bookings or terminate them on Control Hub.
-
The phones can be provisioned as hot-desk-only mode. Only emergency calls are supported on these phones. Users are required to sign in with their Webex account to use the full features.
For more information, go to the following links: .
In this release, we deliver the following meeting related features:
- Mute status sync in hybrid meeting: The audio mute status is now synchronized across multiple devices, including the phone, connected headset, and Webex App. This ensures that the user's audio status remains consistent across all devices when they join a meeting with the phone.
- Recoding indication in meeting: When a meeting is being recorded, a recording indication pops up on the phone screen to notify the users that the meeting is being recording. Also, the users will receive a notification when the recording is paused, resumed, or stopped.
- Participant list: The participant list shows the participants with their roles and the video and audio status. The invitees that aren't present are listed in the lower part of the list.
For more information about the feature, go to the following links:
The Action button can be configured to either make an emergency call or trigger a custom service. Administrators can customize the service name, which appears in a popup when the button is pressed, helping users identify which service they'll access.
This feature requires UCM 14 or later with Device Packages.
For more information, go to the following links:
The Cisco Desk Phone 9800 Series now support Thai, Romanian, Serbian, Slovak, Arabic, and Hebrew as display languages.
For phones on BroadWorks, administrators can add XML applications and assign softkeys or line keys with XML applications for easy access.
For the supported XML objects, URIs, and configurations, see the following links:
Voice feedback helps people with vision problems to use their phone. When enabled, a voice prompt helps you navigate the phone screen and use or configure phone features.
The voice also reads out incoming caller IDs, touchable area information, screen summary, virtual keyboard keys,hard keys, and softkey information.
To have a better visual experience, you can customize the font size when the phone is taken out-of-box. The customization of the font size does not change few of the texts, such as the texts on the phone header, some descriptional small texts, large text on the phone Home screen, texts in the softkey bar. If key expansion module is connected to a phone, font size of the text in KEM also changes during this customization.
For more information on configuring voice feedback on the phones registered to Cisco BroadWorks or Webex Calling, see Configure voice feedback.
For more information on configuring from phone, see Voice feedback (accessibility).
For information on font change, see Customize font size on your phone.
The phones now support Cisco Headset USB-C Adapter for the connection with Cisco wireless headsets.
For more information, see Cisco Headset USB Adapter.
ThousandEyes enables you to monitor and troubleshoot your devices and network. Endpoint Agent has been integrated into the phone firmware. But you need to enable ThousandEyes on your phones to get the agent registered to the ThousandEyes platform.
Only Cisco Desk Phone 9861 and 9871 support this feature.
This feature requires UCM 14 or later with Device Packages.
See the configurations and limitations in the following links:
For phones on BroadWorks, administrators can configure random timer for the phone to enter deep sleep and wake up around the schedule. This feature help distribute the load of network and power system when a large number of phones power on and off simultaneously.
You can control whether to light up the Front Arc LED indicator when the phone enters the Display-Off mode. By default, the LED will turns off. You can change the setting with the LED Indicator in "Display Off Mode" parameter.
This feature requires UCM 14 or later with Device Packages.
See the configurations in the following links:
Phone now has the ability to automatically register to the Site Survivability Gateway (SGW) nodes when the network connection to Webex Calling breaks. When the phone connects to the SGW nodes, phone supports only limited set of calling features. When this feature is enabled, user can see the "Limited features available" notification on the phone.
See the configurations in the following links:
Assured Services SIP(AS-SIP) is a collection of features and protocols that offer a highly secure call flow for Cisco IP Phones and third-party phones. AS-SIP is often used with Multilevel Precedence and Preemption (MLPP) to prioritize calls during an emergency.
For more information, see Assured Services SIP.
In the previous release, only the RSA key is supported in CAPF. Now, the EC key is also supported. To use the EC key, make sure that the parameter "Endpoint Advanced Encryption Algorithms Support" (from
) is enabled.See the configurations in the following links:
You can install a Custom Device Certificate (CDC) by using one of the following methods:
- Manual installation by uploading the certificate from phone web page.
The certificate typically contains a private key and password associated with it.
- Auto installation by a Simple Certificate Enrollment Protocol (SCEP) server.
You can configure the SCEP parameters by using one of the following methods:
- Phone web page
- XML provisioning
- DHCP option 43
The certificate can be installed for the wired and wireless network with 802.1x authentication.
On the phone web page, you can check the installation status of the certificate, view details of the installed certificate, and remove the installed certificate.
On the phone or phone web page, you can select the certificate type (Manufacturing or Custom) for the 802.1x authentication in wired/wireless network environment.
For more information about the feature, go to the following links:
You have the options to permanently turn off the speakerphone, headset, and handset on a phone for your user.
This feature requires UCM 14 or later with Device Packages.
For more information, see Turn off speakerphone, headset, and handset on a phone.
Multilevel Precedence and Preemption (MLPP) allows users to prioritize calls during emergencies or other crisis situations. A priority call takes precedence over a normal call or a lower-priority call.
The user can assign a priority to the outgoing calls that range from 1 to 5. Incoming calls display a precedence level icon and the receiver will hear a special ring that is faster than usual.
For more information about the feature, go to the following links:
The phone supports Cisco UCM with Multi-server (SAN) Tomcat Certificates configured. The correct TFTP server address can be found in the phone ITL file for phone's registration.
For more information about the feature, go to the following links:
If you don't configure the user/admin password on the phone, the phone UI and phone web page will display the no password warning. For security concerns, we recommend to set up the password after the phone's first registration or a factory reset.
In addition, you can't submit the changes from the phone web page until the password is configured.
For more information about the feature, go to the following links:
You can set up the minimum version required for TLS client and TLS server respectively.
This feature requires UCM 14 or later with Device Packages.
For more information, see Set up the supported versions of TLS.
August 13, 2024—PhoneOS 3.1(1)SR1 release
This release is a maintenance release and doesn't contain any new or enhanced features.
To view the resolved and open bugs for this release, see Open and resolved bugs.
July 15, 2024—PhoneOS 3.1(1) release
This release firmware introduces Cisco Desk Phone 9861, 9861NR, 9871, and 9871NR. Basically, these phone models support the features for Cisco Desk Phone 9841 and 9851 in the PhoneOS 3.0.1 release. For details, see PhoneOS 3.0(1) release. In addition, this release firmware provides the following new and enhanced features for Cisco Desk Phone 9800 Series:
Feature name | PhoneOS version | Webex Calling | BroadWorks | Unified CM |
---|---|---|---|---|
Onboarding | ||||
Activation code onboarding | 3.1.1 and later | Yes | Yes | Yes |
Calling features | ||||
Conference/Transfer with active calls | 3.1.1 and later | No | No | Yes |
Call back | 3.1.1 and later | No | No | Yes |
Noise removal support for incoming audio (for 9861/9871) | 3.1.1 and later | Yes | Yes | Yes |
Narrowband-to-wideband audio enhancement by AI (for 9861/9871) | 3.1.1 and later | Yes | Yes | Yes |
Cloud features | ||||
Calendar | 3.1.1 and later | Yes | No | Yes |
One button to push (OBTP) | 3.1.1 and later | Yes | No | Yes |
Accessibility feature | ||||
Voice feedback (for 9841/9851/9861) | 3.1.1 and later | Yes | Yes | Yes |
Wireless supports | ||||
Bluetooth (for 9861/9871) | 3.1.1 and later | Yes | Yes | Yes |
Wi-Fi (for 9861/9871) | 3.1.1 and later | Yes | Yes | Yes |
Accessories supports | ||||
Bluetooth headset (for 9861/9871) | 3.1.1 and later | Yes | Yes | Yes |
Key Expansion Module (for 9851/9861/9871) | 3.1.1 and later | Yes | Yes | Yes |
KEM firmware upgrade | 3.1.1 and later | Yes | Yes | Yes |
KEM intercom | 3.1.1 and later | No | No | Yes |
KEM PLK | 3.1.1 and later | Yes | Yes | Yes |
KEM brightness | 3.1.1 and later | Yes | Yes | Yes |
KEM wallpaper | 3.1.1 and later | Yes | Yes | Yes |
KEM PRT | 3.1.1 and later | Yes | Yes | Yes |
Security | ||||
TLS 1.3 for UCM | 3.1.1 and later | No | No | Yes |
April 9, 2024—PhoneOS 3.0(1)
Cisco Desk Phone 9841 and 9851 running PhoneOS 3.0(1) delivers the following features:
Feature name | PhoneOS version | Webex Calling | BroadWorks | Unified CM |
---|---|---|---|---|
Activation code onboarding | 3.0.1 and later | No | No | Yes |
Action button | 3.0.1 and later | Yes | Yes | Yes |
Adjustable display brightness | 3.0.1 and later | Yes | Yes | Yes |
Adjustable ringtones and volume levels | 3.0.1 and later | Yes | Yes | Yes |
SRST/MRA | 3.0.1 and later | No | No | Yes |
Calendar button (for 9851/9861) | 3.0.1 and later | Yes | Yes | Yes |
Custom wallpaper and logo (for 9851/9861/9871) | 3.0.1 and later | No | No | Yes |
E911 | 3.0.1 and later | Yes | Yes | Yes |
Extension mobility | 3.0.1 and later | No | No | Yes |
Help desk (Favorite button) | 3.0.1 and later | Yes | Yes | Yes |
Local factory reset, restart | 3.0.1 and later | Yes | Yes | Yes |
Multiple languages support | 3.0.1 and later | Yes | Yes | Yes |
Native phone migration | 3.0.1 and later | No | No | Yes |
Password lock for settings menu | 3.0.1 and later | No | No | Yes |
Peer firmware sharing | 3.0.1 and later | Yes | Yes | Yes |
Problem report tool (local and remote) | 3.0.1 and later | Yes | Yes | Yes |
System wallpaper (for 9851/9861/9871) | 3.0.1 and later | Yes | Yes | Yes |
Time and date display | 3.0.1 and later | Yes | Yes | Yes |
Network | ||||
Network traverse ICE | 3.0.1 and later | Yes | Yes | No |
Network traverse NAT | 3.0.1 and later | Yes | Yes | No |
Network traverse STUN | 3.0.1 and later | Yes | Yes | No |
802.1x | 3.0.1 and later | Yes | Yes | Yes |
Calling features | ||||
Ad-hoc conference | 3.0.1 and later | Yes | Yes | Yes |
Audio mute/unmute | 3.0.1 and later | Yes | Yes | Yes |
Noise removal for microphone audio | 3.0.1 and later | Yes | Yes | Yes |
Basic call | 3.0.1 and later | Yes | Yes | Yes |
BLF call park | 3.0.1 and later | Yes | Yes | No |
BLF with call pickup | 3.0.1 and later | Yes | Yes | No |
BLF with speed dial | 3.0.1 and later | Yes | Yes | Yes |
BLF with speed dial and call pickup | 3.0.1 and later | Yes | Yes | Yes |
CBarge | 3.0.1 and later | No | No | Yes |
Caller ID | 3.0.1 and later | Yes | Yes | Yes |
Call forward | 3.0.1 and later | Yes | Yes | Yes |
Call hold/resume | 3.0.1 and later | Yes | Yes | Yes |
Call park | 3.0.1 and later | Yes | Yes | Yes |
Call pickup | 3.0.1 and later | Yes | Yes | Yes |
Call preservation mode | 3.0.1 and later | No | No | Yes |
Call recording | 3.0.1 and later | Yes | Yes | Yes |
Call waiting | 3.0.1 and later | Yes | Yes | Yes |
Cisco meeting server mute sync | 3.0.1 and later | No | No | Yes |
Conference participant list | 3.0.1 and later | No | No | Yes |
Confidential access level (CAL) | 3.0.1 and later | No | No | Yes |
Contacts | 3.0.1 and later | Yes | Yes | Yes |
Dial rules | 3.0.1 and later | Yes | Yes | Yes |
Directory search | 3.0.1 and later | Yes | Yes | Yes |
Do not disturb | 3.0.1 and later | Yes | Yes | Yes |
E.164/Plus Dialing | 3.0.1 and later | Yes | Yes | Yes |
Feature access code | 3.0.1 and later | Yes | Yes | No |
Flexible seating | 3.0.1 and later | No | Yes | No |
Group pickup | 3.0.1 and later | Yes | Yes | Yes |
Hold/Park Reversion | 3.0.1 and later | No | No | Yes |
Hotline | 3.0.1 and later | Yes | Yes | No |
Hoteling | 3.0.1 and later | Yes | Yes | No |
Hunt group | 3.0.1 and later | Yes | Yes | Yes |
Intercom | 3.0.1 and later | No | No | Yes |
Meet me | 3.0.1 and later | No | Yes | Yes |
Multiple calls | 3.0.1 and later | Yes | Yes | Yes |
Native call queue status | 3.0.1 and later | No | No | Yes |
Other pickup | 3.0.1 and later | No | No | Yes |
Programmable line key (PLK) and softkey | 3.0.1 and later | Yes | Yes | Yes |
Programmable Softkey (PSK) customization | 3.0.1 and later | Yes | Yes | No |
Recents (call history) | 3.0.1 and later | Yes | Yes | Yes |
Redial | 3.0.1 and later | Yes | Yes | Yes |
Reverse phone lookup service | 3.0.1 and later | Yes | Yes | No |
Shared line Privacy call Barge | 3.0.1 and later | Yes | Yes | Yes |
Speed dial | 3.0.1 and later | Yes | Yes | Yes |
Transfer | 3.0.1 and later | Yes | Yes | Yes |
Uniform Resources Identifier (URI) dialing | 3.0.1 and later | Yes | Yes | Yes |
Voicemail | 3.0.1 and later | Yes | Yes | Yes |
Cloud features | ||||
Call log | 3.0.1 and later | Yes | No | No |
Hot desking | 3.0.1 and later | Yes | No | No |
Meeting calendar | 3.0.1 and later | Yes | No | No |
One button to push (OBTP) | 3.0.1 and later | Yes | No | No |
Remote reboot and factory reset | 3.0.1 and later | Yes | No | No |
Webex hybrid meeting | 3.0.1 and later | Yes | No | No |
Serviceability maintenance | ||||
Firmware upgrade | 3.0.1 and later | Yes | Yes | Yes |
Sustainability | ||||
Carbon emissions insights | 3.0.1 and later | Yes | No | No |
EnergyStar | 3.0.1 and later | Yes | Yes | Yes |
Office hour (display off and deep sleep) | 3.0.1 and later | Yes | Yes | Yes |
Security | ||||
Media plane security negotiations | 3.0.1 and later | Yes | Yes | No |
Known problems (bugs) are graded according to severity. This article contains descriptions of the following:
-
Open bugs of severity 1 to 3
-
Resolved bugs of severity 1 to 3
Because defect status continually changes, the list reflects a snapshot of the defects that were open at the time new firmware is released.
Before you begin
You need the following to access the Bug Search Tool:
-
An internet connection
-
A web browser
-
A Cisco.com username and password
1 |
Open the Bug Search Tool. |
2 |
Sign in with your Cisco.com username and password. |
3 |
Enter the bug ID number in the Search for field and press Enter. |
What to do next
For information on how to search for bugs, create saved searches, and create bug groups, select Help on the Bug Search Tool page.
Webex Calling or BroadWorks
The following list contains the severity 1, 2, and 3 defects that are open for Cisco Desk Phone 9800 Series and Cisco Video Phone 8875 that run PhoneOS 3.4.1 and are registered to Webex Calling or BroadWorks:
- CSCwo89969, CSCwo89972, and CSCwo89972: Line Label Display Incorrect After Phone Bootup When Changes the line label in offline status
- CSCwo89939, CSCwo89943, and CSCwo89947: When "InOfficeHours - DisplayOff" is enabled, the missed call Alert LED turns off when the display turns off.
- CSCwo90136, CSCwo90142, and CSCwo90149: The meeting mutes and unmutes several times after pressing the mute hard key to mute it.
- CSCwo90127: The DTMF tone isn't always heard when pressing keys in the IVR
- CSCwo90378: Softkey Flashing When Dialing with Full Register Setup in SCA
Unified CM
The following list contains the severity 1, 2, and 3 defects that are open for Cisco Desk Phone 9800 Series and Cisco Video Phone 8875 that run PhoneOS 3.4.1 and are registered to Unified CM:
- CSCwe04756: Shall not keep in 'Configuring...' page during OOB when phone can't get config files
- CSCwn78309: MRA phone not retry to refresh access token if DNS resolve failed, make phone unregistered
- CSCwi76138: Onprem OBTP: Cannot display unicode supplementary characters correctly
- CSCwo88467: phone not apply the new backgraound image if push with same name as the previous image
- CSCwo88475: Failed to establish Wired / Wireless 802.1x TLS Connection when LSC key size is 512 Bits
April 29, 2025 (Phone 3.4.1)
Webex Calling or BroadWorks
We resolved the following issues in this release for Cisco Desk Phone 9800 Series and Cisco Video Phone 8875 that run PhoneOS 3.4.1 and are registered to Webex Calling or BroadWorks:
-
CSCwn78165 and CSCwn78169: Pressing the "Hoteling" causes the phone to reboot if more than 10 lines are enabled with hoteling
- CSCwn78210, CSCwn79724, and CSCwn78218: XSI Failure on DND and Call Forward
- CSCwn78233, CSCwn78236, and CSCwn79725: Call Establishment Failure about 10 minutes after IP Stack Switches to IPv6-Only Mode
- CSCwn78244, CSCwn78249, and CSCwn79726: Setting "Switch Manually" with Long Operation Names in Certain Languages Triggers Reboot Loop
- CSCwn78322 and CSCwn78325: Line Key Unresponsive with Pagination Enabled and KEM Configured but not Attached
Unified CM
We resolved the following issues in this release for Cisco Desk Phone 9800 Series and Cisco Video Phone 8875 that run PhoneOS 3.4.1 and are registered to Unified CM:
- CSCwn02578: No Voicefeedback about authentication info on FAC/CMC page
- CSCwn79745: XSI command 'setBackground' execute failed if the 'kem' tag is missed in the xml body
January 23, 2025 (Phone 3.3.1)
Webex Calling or BroadWorks
We resolved the following issues in this release for Cisco Desk Phone 9800 Series that run PhoneOS 3.3.1 and are registered to Webex Calling or BroadWorks:
-
CSCwn04550 and CSCwn05728: Countdown number briefly changes size and color after pressing action button with voice feedback
-
CSCwn04797 and CSCwn04794: The "Personal contact" is not fully displayed when font size is set to large
-
CSCwn04803: No scan list displayed after phone connection failed due to incorrect password input
-
CSCwn58672: Webui does not display properly from dojo 1.17.3
-
CSCwn44305: 98xx Webui does not display properly on Touch supported devices
Unified CM
We resolved the following issues in this release for Cisco Desk Phone 9800 Series that run PhoneOS 3.3.1 and are registered to Unified CM:
- CSCwn02762: Phone asks Username/Password again after FIPS is enabled
- CSCwk55531: KEM line and Phone 360 LED are not blinking synchronized
- CSCwk49653: Line 127~130 of KEM cannot dial out or receive a call due to UCM limitation
October 31, 2024 (PhoneOS 3.2.1)
Webex Calling or BroadWorks
We resolved the following issues in this release for Cisco Desk Phone 9800 Series that run PhoneOS 3.2.1 and are registered to Webex Calling or BroadWorks:
-
CSCwk62594: The long email address with long name for the XSI contact is being truncated
-
CSCwk63378: Meeting counter fails to update when receiving list outside home page
-
CSCwk62759: WiFi page title updates when switching security mode from 'Auto' to another after selecting an SSID
-
CSCwk63714 and CSCwk63367: Update Voice VLAN while DHCPv6 service disabled; phone still unregistered after reactivating DHCPv6
-
CSCwk63695 and CSCwk62828: Pressing 'navigate down' on the last item of the Recents Details page will read the first item
-
CSCwk63702 and CSCwk62847: Voice feedback does not announce "page 1" or "page 2" as expected on KEM
-
CSCwk63719 and CSCwk63376: Incorrect pronunciation of "d" and "e" in Voice Feedback
Unified CM
We resolved the following issues in this release for Cisco Desk Phone 9800 Series that run PhoneOS 3.2.1 and are registered to Unified CM:
-
CSCwk49735:Need to press ’Select’ to wakeup phone since phone back into deep sleep near configured wake up time
-
CSCwk55555: After Activation Code onboarding, the activated flag in LCD is still white in light mode
-
CSCwk55576: The line key LED for Hunt group is not cleared when phone is unregistered
-
CSCwk55583: Voice feedback can't read out the content of Action button guide after Action button config change
-
CSCwk67177: Cipher Suites and Signature algs should comply with ECC configuration of UCM
-
CSCwk67185: ECC crypto suites not in TLS client-hello msg when register to SRST
-
CSCwn00908: Action Button - Long Press+Delay0+SilentEmergencyCall caused Call Looping on receiver phone
-
CSCwe04762: User cannot connect EAP-TLS from wifi scan list since the security mode always displayed EAP
-
CSCwf11899: Phone Mute LED is not red after changing audio path from usb-headset to 721 BT headset
-
CSCwf11900: Sync mute-unmute between MUTE LED and 721 BT headset failed
-
CSCwi76174: Bluetooth headset will not sync mute status when mute phone via CMS web client
-
CSCwi76224: "Speed dials" quick access screen overlaps "Upcoming meetings" screen
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CSCwn00908: Action Button - Long Press+Delay0+SilentEmergencyCall caused Call Looping on receiver phone
August 13, 2024 (PhoneOS 3.1.1SR1)
We resolved the following issue in this release for Cisco Desk Phone 9800 Series that run PhoneOS 3.1.1SR1 and are registered to Webex Calling, BroadWorks, or Unified CM:
- CSCwm00114 DHCP6: do not send RS during the IPv6 startup phase
July 15, 2024 (PhoneOS 3.1.1)
Webex Calling or BroadWorks
We resolved the following issues in this release for Cisco Desk Phone 9800 Series that run PhoneOS 3.1.1 and are registered to Webex Calling or BroadWorks:
- CSCwj54629 For some call records, unable to favorite it under details window after adding to contact
- CSCwj54635 The speaker LED turns green and the dial tone plays after several off-hook/on-hook cycles
- CSCwj54643 The phrase "All lines" displayed in the 'Recents' is not localized
- CSCwj54585 The prompt toast should be "Upgrade in progress"
- CSCwj66661 The softkey list displays incorrectly after the last contact item is deleted
- CSCwj66706 Missed call notifications display on lines mapped to same extension
- CSCwj66709 The start time and end time for a Webinar meeting are incorrectly displaying as identical
- CSCwj66934 BLF (Busy Lamp Field) names are displayed as language unicode characters
- CSCwj66940 Unable to select the first meeting in the calendar list by pressing the '1' key on the phone
- CSCwj66954 Transaction status is Authenticated when 802.1x is enabled on phone but the authentication times out
- CSCwj66984 "Return to call" string is truncated in certain languages
- CSCwj67105 The resync tag value of Line_label can't be assigned correctly
Unified CM
We resolved the following issues in this release for Cisco Desk Phone 9800 Series that run PhoneOS 3.1.1 and are registered to Unified CM:
- CSCwj55473 Phone still shows the IP in network status after power cycle if Disable 802.1x
- CSCwj55483 Incoming call list flashes for a while if end the last hunt group call when another one is waiting
- CSCwj55485 The distance of call sessions on huntgroup with caller name is too close
- CSCwj55490 Phone can't navigate down after subscribing two services
- CSCwj55491 Phone Informacast paging server auth failed
- CSCwj55493 Phone popups an overcurrent toast when connecting 980/700 series to side USB port
- CSCwj55495 The incoming call in call list displays abnormal for single line
April 9, 2024 (PhoneOS 3.0.1)
This version PHONEOS.3-0-1-0001 is the initial release and has no resolved bugs.
Installation requirements
Before you install the firmware release, you must ensure that your Cisco Unified Communications Manager is running the latest device package. After you install a device package on the Cisco Unified Communications Manager servers in the cluster, you need to reboot all the servers.
If your Cisco Unified Communications Manager doesn't have the required device package to support this firmware release, the firmware may not work correctly.
Before using the phone firmware release, you must install the latest Cisco Unified Communications Manager on all Cisco Unified CM servers in the cluster.
1 |
Go to the Software Download for IP Phones. |
2 |
Do one of the following actions:
|
3 |
Choose Session Initiation Protocol (SIP) Software, if prompted. |
4 |
In the Latest Release folder, choose 3.4(1). |
5 |
Select the firmware file, click the Download or Add to cart button, and follow the prompts: The firmware filename is cmterm-PHONEOS.3-4-1-0002-49.cop.sha512 If you added firmware to the cart, when you are ready to download the files, click the Cart and then click Download All. |
6 |
Click the + next to the firmware file name in the Download Cart section to access more information about this file. |
7 |
Click the Readme link to open the installation instructions for the firmware. |
8 |
Follow the instructions in the readme file to install the firmware. |
If a Cisco Unified Communications Manager is not available to load the installer program, the following .zip files are available to load the firmware: cmterm-PHONEOS.3-4-1-0002-49.zip.
Firmware upgrades over the WLAN interface may take longer than upgrades using a wired connection. Upgrade times over the WLAN interface may take more than an hour, depending on the quality and bandwidth of the wireless connection.
1 |
Go to the Software Download for IP Phones. |
2 |
Do one of the following actions:
|
3 |
Choose Session Initiation Protocol (SIP) Software, if prompted. |
4 |
In the Latest Release folder, choose 3.4(1). |
5 |
Select the firmware file, click the Download or Add to cart button, and follow the prompts: The firmware filename is cmterm-PHONEOS.3-4-1-0002-49.zip |
6 |
Unzip the files. |
7 |
Manually copy the unzipped files to the directory on the TFTP server. |
By default, your phones are set up for the English (United States) locale. To use the 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 Phones.
To access the Locale Installer required for a release, access the Software Download page, 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.
The latest Locale Installer may not be immediately available; continue to check the website for updates.
Download the firmware file from cisco.com and then install the firmware with the phone administration web page or using the command in your web browser.
Before you begin
Obtain your username and password for cisco.com. Firmware downloading requires you to log in to cisco.com.
1 |
Do one of the following actions:
|
2 |
Choose Session Initiation Protocol (SIP) Software, if prompted. |
3 |
In the Latest Release folder, choose 3.4(1). |
4 |
(Optional) Place your mouse pointer on the file name to see the file details and checksum values. |
5 |
Download the firmware file |
What to do next
Unzip the .zip
file that you downloaded from cisco.com and place the files in the appropriate location on your upgrade server.
Before you begin
Unzip the .zip
file that you downloaded from cisco.com 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.
1 |
Log in to the phone administration web page. The URL for your phone web page is
http://<phone IP address>/admin/advanced .Example: |
2 |
Go to . |
3 |
In the Firmware Upgrade section, enter the load URL in the Upgrade Rule. Follow this format when you enter the load file URL:
Examples: http://10.73.10.223/firmware/PHONEOS.3-4-1-0002-49.loads
|
4 |
Click Submit All Changes. |
Before you begin
Unzip the .zip
file that you downloaded from cisco.com 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.
In the address bar of your web browser, enter the phone upgrade URL in the following format:
Examples:
Specify the |
Anything that degrades network performance can affect phone audio 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.
When the Cisco Unified Communications Manager Transfer On-Hook Enabled field is enabled, users might report a problem with direct call transfer in SIP phones. If the user transfers the call and immediately goes on hook before they hear the ring signal, the call may drop instead of being transferred.
The user needs to hear the ring signal so that they can be sure that the call is being routed.
Use the following sections to obtain related information.
Cisco PhoneOS Phones (9800/8875) documentation
See the help information for Cisco Desk Phone 9800 Series on the help page.
See the help information for Cisco Video Phone 8875 on the help page.
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 on the product support page.
Cisco IP Phone Firmware Support Policy
For information on the support policy for phones, see the Cisco IP Phone Firmware Support Policy.