How To Screen Share Skype For Mac

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Want to share something displayed on your PC while having a conversation on Skype? One of the best ways to do this is to share a screen. Yet most users don’t learn how to do it as it sounds too technical and intimidating. We’ve good news in this article, we will discuss ways to share screen on Skype. In addition to this, you can also record calls on Skype. To know what all software you can use to record calls on Skype read our detailed article.

Be it on Skype, Join.Me or GoToMeeting, you can share screens to give control to others of your screen. Here are the steps to screen share on Skype.

Steps To Share Screen On Skype When Using Windows

  1. Bart used Skype to share his screen to me, and I recorded the Skype video using Call Recorder for Skype from Ecamm Software ($30). I knew we’d be taking the resolution down to 720p, so we had Bart set his screen resolution as close as we could get to a vertical dimension of 720, and so did I.
  2. On a Windows PC, go to the Call menu and select “share screens.” On a Mac, go to the Conversation menu and select “share screens.” On some systems, you can access the Share Screens option from the control bar using the Plus + sign.
  3. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.

Skype interface for Windows and Mac is somewhat similar therefore, the steps to share screen are alike.

However, if you not using Skype for Business account, you need to be on call first actually before sharing the screen. This means you cannot setup share screen on Skype if the call is not in process.

Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Skype is for more than just video conversations. You can collaborate on screen by sharing what you're looking at with the person you're talking to.

Method to share screen on Skype:

1. Open Skype.

2. Initiate a call by selecting the contact, and click on the phone icon present at the top right corner. (You should have the latest version of Skype)

3. Next, click on the double square “Share Screen” option to start sharing.

You will now be asked to confirm screen sharing. Click on the Start sharing button.

Alternatively, if the Recent Chats panel remains open during the video call, click horizontal three lines > More Options > Share screen option.

4. Once done, Share Screen interface will swap your call screen, and automatic screen sharing will start with the person you are in call with.

In addition to this, if you are using a PC with multiple screens, you can switch between screens by clicking on More Options or Screen Sharing Options.

To stop screen sharing, click the double-screen icon, and select Stop sharing.

Using these steps, you can do audio screen sharing when using Skype on Windows.

Alternatively, if you are not comfortable sharing a complete desktop, you can share one application window. To share an application window, follow the steps below:

  1. During the Skype call, click on the Share screen button.
  2. You will now be asked to confirm screen sharing. To share an application window, click on the drop-down menu, and choose the Share application window.
  3. Skype will now let you select the application you would like to share.
  4. Select the application and click on the Start sharing button.

This way you can share selected window applications while sharing screens on Skype. To learn how to delete Skype conversation read this in-depth article.

How To Start Screen Sharing During Skype Calls On Mac

If you are using Skype on macOS 10.15 Catalina, you can share your screen on Skype. To do so, you will first need to grant access permission.

Usually, during a call, you get a notification asking for permission. However, if you missed it you can grant permissions by heading to Mac System Preferences > Security & Privacy > Screen Recording. Here, grant access to Skype.

Using these steps, you can share screen on Skype on an ongoing call when running it on macOS Catalina 10.15

How To Share Your Phone Screen On Skype

If you are one of those folks who like to do their stuff on-the-go and use Skype on Android or iPhone. You can share a screen during calls from these devices using the steps below:

To start screen sharing from your Android or iPhone check OS version you are running it on.

You should be running Android 6.0 and above. For iPhone, iPad, and iPod Touch you need to run iOS 12 and higher.

Now, that you are running the supported version follow the steps to share the screen on Skype.

  1. Open Skype – video call and screen sharing app.
  2. Select a contact to start your call.
  3. Next, during the ongoing call tap three dots icon present at the bottom right corner to bring up the Share screen icon.
  4. Here, tap Skype listing followed by the Start Broadcast button.
  5. You can now share the screen on Skype.
  6. To stop sharing the screen, go back to Skype and tap Stop Broadcast option.

Using these steps, you will be able to share the screen on Skype.

In addition to these steps, if while using Skype for Web on Chrome your video call changes to an audio call remember Chrome only allows one output at a time. This means when screen sharing on Skype is initiated your video call will become an audio call. Once screen sharing is finished, the video call will be back on.

Wasn’t it simple to share the screen on Skype? In addition to this, there are other things also that you can do on Skype. Checkout 7 Amazing things you should know about Skype.

Do leave us your comment to let us know what you think about this feature. Using screen sharing you can make collaboration easy. This means you can share your files with everyone on the call and without spending anything extra.

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Video-based Screen Sharing (VbSS) in Skype For Business Server 2015 is now available for download: Skype for Business Server 2015 Cumulative Update KB3061064. VbSS is included with Skype for Business Server 2019.

Video-based Screen Sharing, or VbSS, grew out of Lync screen-sharing. The difference between VbSS and traditional screen-sharing has to do with the underlying protocols used, and what they excel at. Screen-sharing uses the remote desktop protocol (RDP), which is great at creating thousands of 1-to-1 sessions between people's computers. Newer technology, VbSS, will make use of User Datagram Protocol (UDP).

Skype for Business Server wanted to improve people's 1-to-1, and their 1-to-many (multi-party) conversations and meeting experiences. VbSS makes use of the media platform (which relies on UDP as the underlying protocol), with the goal of improving your video start times, the viewing quality of what you're watching (especially if what you're watching is moving fast), and reliability overall.

Part of the goal of improving screen-sharing is that transitions between VbSS and RDP be as seamless as possible when they occur. Since VbSS is an update to underlying technology that is used in screen sharing for Skype for Business Server, it may be difficult to detect which technology you're leveraging unless you're looking at SIP details in the network traffic, or you're sharing content that is fast moving or 3-D. If, for example, your workplace has a lot of legacy clients, RDP will still be available as a failsafe to your meetings and conversations. Skype for Business Server uses internal logic to decide which of the two methods (VbSS or traditional screen-sharing) to apply when clients connect. RDP can, and will, be substituted for VbSS when the situation calls for it, so that your viewing experience won't be interrupted.

Planning

VbSS pros and cons

How To Screen Share With Audio Using Skype Mac

Switching to VbSS aims to make three key improvements:

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  1. Make screen-sharing (up to 5%) more reliable compared to RDP alone.

  2. Make the session setup and video experience faster compared to RDP alone (setup in half the time, with a 6:1 improvement in frames-per-second).

  3. Works much better than RDP in low bandwidth conditions, even when sharing high motion content, such as 3-D graphics.

Please keep in mind that these numbers rely on the health and proper performance tuning of your network, and may involve networks external to your own, if your clients are on mobile devices.

You should also be aware that some fidelity/crispness of your shared content has been traded for reliability, speed, and efficiency. In most cases this will not be readily visible to users.

Ports and protocols

Required server ports

Server roleService namePort or port rangeProtocolNotes
Front End Servers
Skype for Business Server Application Sharing service
5065
TCP
Used for incoming SIP listening requests for application sharing.
Front End Servers
Skype for Business Server Application Sharing service
49152-65535
TCP/UDP
Media port range used for application sharing.

Required client ports

ComponentPort rangeProtocolNotes
Clients
1024-65535
TCP/UDP
Application sharing.

If QoS is enabled for the following media ports and VbSS is also enabled, during a conference that includes desktop sharing the AS MCU will use the video port settings shown in bold below for the screen share traffic.

Important

These settings are a special case, and these exact settings must be used when implementing both of these features. This overrides other recommended settings in the documentation for QoS. For application sharing you will also need to specify ASMCUSVC.exe in the QoS GPO in addition to defining these port values.

Application Server QoS/VbSS required settings

PropertyPort valueProtocol
AudioPortStart
49152
UDP
AudioPortCount
8348
UDP
VideoPortStart
57501
UDP
VideoPortCount
8034
UDP
AppSharingPortStart
40803
TCP
AppSharingPortCount
8348
TCP

Capacity planning

Each Front End Server running Skype for Business Server 2015 Cumulative Update 2 (CU2) or later supports up to 375 participants for screen sharing using RDP (though only 250 per meeting). This capacity doesn't change post-CU3, when VbSS is introduced and used.

That being said, we've done performance and stress testing in our lab, and the following measurements should also be considered with regard to your own deployment (depending on usage, of course).

Assuming:

  • You're using Skype for Business Server 2015 CU2 or later in your deployment.

  • All the users in your Skype for Business Server environment have screen resolutions higher than 1920x1080.

At full capacity (which as noted above, is 375 screen sharing participants per Front End Server in total, though only 250 per meeting), your Front End Server may be utilizing ~89% of the 1 Gigabit of network card. This is because the existing screen sharing technology in Skype for Business Server CU2 (RDP) transmits the on-screen content at the native resolution of the presenter's PC. So with higher screen resolutions factored in, you may already be experiencing network bottlenecks for screen sharing with Skype for Business Server 2015 CU2.

To mitigate this, one or more of the following options may be helpful:

  • Upgrade your Front End Server from a 1 Gigabit network card to a 10 Gigabit Ethernet card.

  • Increase the number of Front End Servers to load-balance traffic.

  • Limit the bandwidth (bitrate) used for VbSS and RDP by putting a cap on the maximum bandwidth used by either channels.

Skype Screen Sharing Problems

The numbers in this table are influenced by individual networks and by the content being shared. Please test to establish baselines for your network or networks.

1080p ContentRDP AverageRDP PeakVbSS AverageVbSS Peak
PPT
200kbps
12mbps
100kbps
3mbps
CAD
3mbps
7mbps
1mbps
3mbps
Video
5mbps
7mbps
1.3mbps
2.2mbps

Network bandwidth requirements for media traffic

The VbSS bandwidth is:

Video codecResolution and aspect ratioMaximum video payload bit rate (Kbps)Minimum video payload bit rate (Kbps)
H.264
1920x1080 (16:9)
(The aspect ratio depends on the sharer's monitor resolution, and will not always be 16:9)
4000
1500

Clients and servers support

Video-based Screen Sharing requires Skype for Business Server 2015 CU3 or later, and a current version of the supporting clients listed in Mobile client feature comparison for Skype for Business and Meetings support.

Share

There are situations where screen-sharing will transition to RDP, like these:

  • If your account is hosted in an environment where the ASMCU doesn't meet the minimum build that supports VbSS.
  • If someone who uses an older version of the Skype for Business client joins your session, for example anyone using any Windows client version that is lower than 16.0.6330.1000, Skype for Business Room System Devices, or Skype for Business Mobile Apps.
  • If a user is sharing from the Skype for Business Web App.
  • If someone is using Skype for Business on Mac and not is homed on Skype for Business Online or Skype for Business Server 2015 with the July, 2018 cumulative update (or later).
  • If someone starts any Program/Windows Sharing.
  • If someone starts recording the session.
  • If someone invokes Remote Screen Control during the session.
  • Meetings with more than 250 participants (where VbSS is not currently supported).

Be aware that once the session transitions to RDP it will not transition back to VbSS. Again, the transition from VbSS is meant to be seamless, and, with hope, will not be easy to detect in most situations.

Note

It's not supported to block, or attempt to block, transition from VbSS to RDP in Skype for Business screen-sharing.

Enabling, disabling, and configuring VbSS

The great thing is, once you've installed the Skype for Business Server 2015 Cumulative Update 3 (CU3) or later, all your users will be enabled for 1-to-1 and multi-party VbSS by default. This may be problematic for you if you have a reason to not have this functionality enabled for all your users. In that case, you're able to use these steps to disable users (the enable users steps will follow):

How to disable users from using VbSS

  • You can assign a user policy that doesn't allow VbSS to any users who shouldn't be using VbSS by running this cmdlet in the Skype for Business Management Console (replace [PolicyName] with the policy you're doing this for):

  • You also can update the global conferencing policy, which will affect all users without an assigned policy:

    For more information on this command, see Set-CsConferencingPolicy.

  • If you need to turn VbSS off completely, you can run this command:

    For more information on this command, see Set-CsMediaConfiguration.

Note

How To Share Screen Skype Macbook

In a multiparty Skype for Business meeting, all client endpoints will respect the policy setting for the meeting organizer.

How to enable users to use VbSS

  • You can assign a specific user policy that allows VbSS to any users who need to be using VbSS by running this cmdlet in the Skype for Business Management Console (replace [PolicyName] with the policy you're doing this for):

  • You also can update the global conferencing policy, which will affect all users without an assigned policy:

    For more information on this command, see Set-CsConferencingPolicy.

  • If you need to turn VbSS back on after turning it off (it's on by default), you can run this command:

    For more information on this command, see Set-CsMediaConfiguration.

Note

Skype Share Screen Not Working

In a multi-party Skype for Business meeting, all client endpoints will respect the policy setting for the meeting organizer.

How To Screen Share On Skype For Mac

See also