General Limitations and Restrictions
Accessory Call Control
Accessory call control (adjust call volume, answer or end phone calls, and mute audio) is supported for compatible headsets. Some other headsets provide basic functionality, but the accessory call control features do not work with Cisco Jabber Softphone for VDI. For a complete list of compatible headsets and other accessories, see https://www.cisco.com/c/en/us/products/unified-communications/uc_endpoints_accessories.html.
Adjust Settings for Jabra Bluetooth Devices
Most Jabra Bluetooth devices introduce a short delay in bringing up the audio path (about 1 to 3 seconds). For supported Jabra Bluetooth devices, you can eliminate the delay by changing the device settings in Jabra Direct. For more information, visit the Jabra website.
Before you begin
Jabra Direct must be installed.
Procedure
Step 1 |
Open Jabra Direct. |
Step 2 |
Click the Jabra device for which you want to modify the settings. |
Step 3 |
Click Settings. |
Step 4 |
Click to expand Softphone (PC). |
Step 5 |
From the Preferred softphone list, select Cisco Jabber. |
Step 6 |
Set Open phone line to On. |
Step 7 |
Set PC audio to Off. |
Step 8 |
Click Apply. |
BFCP Share and Citrix Workspace App Protection
App Protection in supported releases of Citrix Workspace conflicts with BFCP shares in Cisco Jabber Softphone for VDI. For users to use BFCP share, App Protection must be disabled in Citrix Workspace.
Call Preservation Mode
Cisco Jabber Softphone for VDI does not support Call Preservation, also known as "survivability". If a network interruption occurs and Cisoc Jabber goes into Call Preservation mode, the calls drop for VDI users.
Camera Hot Swap
Cisco Jabber Softphone for VDI establishes video quality at the start of a call. If you start a call with one of the supported HD cameras, and then switch to a standard-definition camera, video quality is affected. We recommend that you switch cameras between calls.
Changes to Your Connection Method
You must always install Citrix or VMware before you install the JVDI Client. Therefore, you must reinstall the JVDI Client after one of the following changes:
Linux platforms
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Upgrading Citrix or VMware
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Switching from Citrix to VMware, or from VMware to Citrix
Windows and Mac platforms
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Switching from Citrix to VMware, or from VMware to Citrix
Cisco Jabber Features
Cisco Jabber Softphone for VDI Release 14.0 supports all Cisco Jabber for Windows Release 14.0 features, except the following:
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Agent Greeting
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Application Sharing
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Audio device selection from the Hub Menu
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Cisco Headset Firmware Upgrade Notification (Linux)
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Cisco Sunkist 730 Headset Presence LED Syncs with Jabber (Linux)
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Cisco Unified Survivable Remote Site Telephony (SRST)
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Custom Contacts for Team Messaging Mode
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Far End Camera Control (FECC)
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Federal Information Processing Standard, Publication 140-2 (FIPS 140-2) and Information Assurance (IA) Compliance
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H.264 High Profile Support
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IM-only Screen Sharing
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Improved Video Resolution
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Cisco Jabber to Jabber Call
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Cisco Jabber desk phone video (display of video on the desktop when the thin client is connected to the user's desk phone)
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Kerberos and Common Access Card (CAC) with Single Sign On (SSO)
Cisco Jabber Softphone for VDI does not support CAC, and supports Kerberos only with SSO.
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MRA Registration Failover
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PreferP2PDesktopShare (configuration parameter to prioritize person to person screen sharing over video sharing in the Cisco Jabber configuration file)
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Supervisor Barge
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Wireless Screen Sharing
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Whisper Announcements
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XMPP Federation for Team Messaging Mode
Cisco Jabber Installed on the Thin Client
We recommend that you do not install Cisco Jabber on the thin clients. If you do install Cisco Jabber on the thin clients, ensure that users sign out of Cisco Jabber before they sign in to their hosted virtual desktops. Cisco Jabber Softphone for VDI works only with Cisco Jabber installed on the HVD.
Cisco Media Services Interface and Dual VLAN
Cisco Media Services Interface (MSI) and Dual VLAN are not supported for this release.
Echo Cancellation
Echo cancellation is enabled only for audio calls.
GPU Passthrough
Cisco Jabber Softphone for VDI depends on the display adapter name to determine whether Cisco Jabber operates in VDI-optimized mode. Cisco Jabber Softphone for VDI supports only display adapter names that include the substring "Citrix" or "VMWare".
After you set up GPU passthrough to give the HVD direct access to the display adapter, the display adapter name doesn't include the required substring. Therefore, Cisco Jabber Softphone for VDI mistakenly identifies the deployment as non-VDI.
You can work around this issue by adding the following to the Windows registry on the HVDs:
[HKEY_CURRENT_USER\Software\Cisco Systems, Inc.\JVDI] "isVDIEnabled"="true"
After you edit the registry, restart Cisco Jabber.
HDX RealTime Webcam with Citrix
Cisco Jabber Softphone for VDI does not support HDX Plug-n-Play for cameras. Citrix recommends using HDX Webcam for camera interactions.
Jabra Firmware
Ensure that all Jabra devices are running the latest firmware. You can use Jabra Direct to update the firmware. For more information, visit the Jabra website.
Jabber VDI Fallback Mode
Jabber VDI fallback mode offers short-term support for basic audio and video calls when VDI can't establish the virtual channel. Fallback mode supports standard calls and call recording. The full feature set isn't supported. For example, you can't forward a call that you're recording in fallback mode. Call quality is lower because of the server or network issues that cause the switch to fallback mode.
Microphone Levels in Fallback Mode
Microphone levels are reset to 54% in VDI fallback mode when a user unplus and replugs a headset. This is a Citrix audio device mapping issue.
Self View in Fallback Mode
In VDI fallback mode, the self view may not appear with Citrix HDX Web Camera, or VMware Virtual Webcam,
Multiple Hosted Virtual Desktop Sessions
Cisco Jabber Softphone for VDI may not work as expected with multiple HVD sessions. The phone service connection should be unaffected but the video or self-view position might be incorrect when in a call or when previewing the video.
Remote Display Protocol Support
Cisco Jabber Softphone for VDI supports only the following protocols:
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Citrix: ICA
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VMware: PC-over-IP (PCoIP) and VMware Blast Extreme
Remote Problem Report Tool (PRT)
The remote PRT feature won't work when the virtual channel connection is broken.
Single Session Hosted Virtual Desktop (Windows Server 2019)
This version of Cisco Jabber Softphone for VDI doesn't support Windows 2019 as a single session hosted virtual desktop (HVD). If Windows 2019 is a single-session desktop in the VMware VDI environment, use the following workaround when Jabber for Windows isn't running in VDI mode.
Add the following to the Windows registries on the HVD:
[HKEY_CURRENT_USER\Software\Cisco Systems, Inc.\JVDI] "isVDIEnabled"="true"
After you edit the registry, restart Cisco Jabber.
SIP Profiles
When you create a Cisco Unified Client Services Framework (CSF) device, you specify a SIP Profile for the device. SIP profiles provide specific SIP information for the phone, such as registration and keepalive timers, media ports, and Do Not Disturb control.
You can use Certificate Authority Proxy Function (CAPF) to manage the phone certificates for the hosted desktop versions of Jabber for Windows. When you change the CAPF Certificate Operation from No Pending Operation to Install/Upgrade, the users must reset Jabber for Windows and sign in to complete the certificate installation.
![]() Important |
Do not choose Authentication Mode By Null string when using the Certificate Authority Proxy Function (CAPF). This setting breaks Cisco Jabber Softphone for VDI registration to Cisco Unified Communications Manager. |
USB Camera Redirection Not Supported with VMware View
USB camera redirection is not supported with VMware View.
Video Codec Performance
Software decoding relies heavily on the CPU. Estimated CPU usage for the Cisco JVDI Client with lower-end CPUs is as follows:
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1.5Ghz, Dual core CPU—65% (55 to 75%)
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1.5Ghz, Quad core CPU—35% (25 to 45%)
Use of a camera with a built-in hardware decoder reduces the load on the CPU.
VMWare Support
Cisco Jabber Softphone for VDI 12.8 and later supports Display Scaling mode. Users should check their VMware Options menu and ensure that Allow Display Scaling is checked.
Cisco Jabber Softphone for VDI supports full-screen and windowed display for Windows and Linux thin clients in both VMWare and Citrix VDI environments.
Voice Message Recording
In a Windows Server 2019 environment, Cisco Jabber Softphone for VDI may not be able to record a voice message. To fix this issue, check the microphone privacy settings on the HVD and allow apps to access the microphone if needed.