skype for business powerpoint presentation size limit

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Skype for Business presentation size limits.

I recently had an implementation where very large PowerPoint presentations was needed. When those pptx files were pre-uploaded to the meeting, the following dreaded “allowable file size exceeded” message occurred:

It got me interested in finding out what the allowable file sizes are for Skype, and after scouring documentation, I discovered the following:

As of September 2017:

• With Office Web Apps 2013, the max file size is 150Mb
• With Office Online Server, the max file size is 300Mb

The explicit limits, where applicable, are listed in the table below. However, note that there is a 60-second file download time out that applies to all GetFile operations, and this time out can affect the perceived file size limit. In practice, this time out is rarely hit, since connectivity and bandwidth is typically very good between Office Online and host datacenters. However, hosts should be aware of this limit.

The process to configure these max sizes is fairly simple, and is configured in the “ Settings_Service.ini ” configuration file. The default location for that file is:

C:\Program Files\Microsoft Office Web Apps\PPTConversionService

At the bottom of the file, just add the following entries:

For Office Web Apps 2013, add:

PowerPointEditServerMaxFileSizeBytes=(System.UInt64)153600000 PowerPointServerMediaEmbeddedMaxSize=(System.UInt64)153600000

For Office Online Server, add:

PowerPointEditServerMaxFileSizeBytes=(System.UInt64)307200000 PowerPointServerMediaEmbeddedMaxSize=(System.UInt64)307200000

Once the changes are saved, restart the server service. You may do so in PowerShell with the following command:

Restart-service WACSM

Please note, these max sizes are for the entire meeting, not per attachment, therefore, if your meeting has much larger files, you will have to split them, upload one, go through it, remove it, upload the next. – You can upload several files at a time, but they cannot collectively be larger than the total MB size limits.

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The best ways to use Skype for Business

If you have used Skype before, the chances are that you have been involved in a conference call or video presentation before.

As some may think of Skype as a simple chat and phone call service, it is actually a multifunctional means of both communication and collaboration. Skype provides a way to connect teams, work sites and businesses to clients without having to be in the same room.

Speaking in public is anxiety-inducing enough as it is. Having to show off your verbal acuity on top of your technological adeptness could be potentially overwhelming. They can't see you sweating through a monitor, though!

Take a look at some of these features available through Skype to help you prepare for your big moment.

Create groups for team conference calls

Sharing on skype, recording your presentation, managing participants, pairing skype with onenote.

Why you can trust Windows Central Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test .

Ideally, you would want to create an appointment for your team to attend, but sometimes you may need to jump on a conference call to address a topic. In Skype, you can create collections of people and then choose to begin a conference call with members of those groups instantly.

Using Skype for Business to create and use groups

• From the Skype menu, click on the Add icon.
• From the list, select Create a New Group .
• Enter the name of the group.
• Search or click and drag on existing contacts to copy them to the new group.
• Right click on the group name and select either Start a Conference Call or Start a Video Call .

Alternatively, you could create an ad hoc call simply by pressing Alt+M from the Skype Menu. You would then begin adding in contacts.

To add contacts to the call

• In the call screen, click on Invite more people .
• Search for contacts by entering their name in the search field or scroll through your list.
• Click on the contact and select Ok .

Adding documents, images, and other files during your meeting or presentation can have many benefits. It can add depth to the conversation and helps participants to understand what is being communicated by accommodating for different learning methods.

Here are a few sharing methods to consider:

To share your screen while on a voice or video call

• Click the Present button located the in call bar near the bottom of the screen.
• From the list, click on Present Desktop to share your screen or Present Programs for specific windows.
• If you are a multi-monitor user, you will need to select which screen you want to share with the participants.
• Once selected, press Present to begin.

This provides participants with a live view of what is on your screen or window. Be mindful of what you may have open on your screen as well as you may be sharing private information as well.

To share a PowerPoint presentation

• During a call, click on the Present icon and select Present Powerpoint .
• Locate and click on the file and select Open .

The participant can now follow along with the PowerPoint as you are presenting. Alternatively, they can also scroll forwards and backward in case they were looking for more information or clarification.

This can help viewers understand details at their own pace. If they find the text too small to look at, the participant can alter their view by switching to full-screen mode or by utilizing zoom and pan options.

As the presenter, you have on screen options to view any notes on the presentation or view the order of slides; making it easier to refer to previous information or prepare a proper segue to the next slide.

To share a file:

• Click the Present icon.
• Select Add Attachment .
• Choose the file and select Open .

Keep in mind that there's a file limit of 300 MB and a 30-day expiry on the shared file in a conversation history; be sure to save when necessary.

There are a variety of reasons why a presenter would record their call or presentation; perhaps they just finished a dry run with a test subject and wanted to review their performance. It could also be necessary for reporting purposes. Regardless of the reason, Skype for Business allows you to record without the need for a 3rd party solution. Every type of interaction is captured in the recording in an MP4 format, including chat, files presented and shared, even audio and video.

To record during a call:

• Click the More icon to open a list of options.
• Select Start Recording .
• Recording options appear to the right of the end call icon. You can stop, pause or resume the recording.
• To end, click Stop Recording .

Skype for Business also facilitates the option to play or share any recorded presentation.

• From the main screen, click the tools icon.
• Select Recording Manager .
• In the popup, select the desired recording and click Play to review it.
• To send a copy, click browse , right-click on the file and select share . You can then choose to delivery options such as email or send to OneDrive.

While you are the presenter of the meeting, the fact remains that you may not always be in control of the meeting. The more people that are attending, the greater the risk of interruption; intentional or otherwise. There may be a participant in a loud environment or someone who is all too willing to share their opinion. There are a few options available to help manage behaviors, individuals, and audio mishaps.

Skype meeting options in Outlook

• If you're creating a meeting from Outlook, you can edit the meeting before sending the invite.
• From your Outlook calendar, click on New Appointment .
• In the popup, under Skype Meeting , select Meeting Options .
• To edit all options, select A new meeting space .
• Use These people don't have to wait in the lobby to select which individuals can enter the conference before the presenter.
• Use Who is a presenter to choose who can manage and modify items and files presented during the meeting (great for collaborative work).
• Use Do you want to limit participation to disable IM, mute all attendees or block a participant's video.

Rather than solely relying on an MP4 of your presentation with colleagues, the presenter could allow for a shared note with participants through OneNote. The presenter could assign a minute taker, or everyone could contribute their ideas collectively. If you would prefer to take your own minutes, you can compose them privately.

To access notes

• Click on the presentation icon and select Shared Notes or My Notes .
• For private notes, click My notes .
• For publically viewed notes, click Shared notes .
• Choose a section from within the note selector; a section will generate a blank page within it.
• The page is then fixed to your desktop while participants will be notified about the notebook.
• All participants will be able to open the same notebook from their own computer to capture their notes.

As you keep these tips in mind, don't forget to cover the basics. Always make sure you check your audio and video capabilities. If you want your voice to be heard, you should check your volume and quality. The files you are prepared to deliver should also be organized in advance. Keep all items handy so that can be easily retrieved, rather that fumbling through folders as you go.

Have you used Skype for the lead a conference call? What advice would you share with those about to take the helm for the first time? Let us know in the comments.

Don't forget to visit our Office 101 help hub for more related articles:

• Microsoft Office 101: Help, how-tos and tutorials

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Skype for Business with PowerPoint

With a lot of presentation the facilitator will take everybody's slides and consolidate into one big deck.

Then during the presentation the various presenters has to constantly ask for "next slide" ...

Because it is PowerPoint, it would be great if Skype could have a function where any of the presenters (not the regular participants) could just press a button in Skype when the want to have the presentation advance to next slide. That would make it much more interactive and flowing easily.

This function should be able to advance the slides both in presentation mode as well as in standard mode. Sometimes the main presentation is not shown in presentation mode - so that it is easier to jump around, go back, and as well avoid animation. Therefore this function should be able to handle standard mode as well.

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Based on your description, here is my understanding of your requirement:

When a user presenter his PowerPoint file to other users, only the presenter can move to the next slide, and other users in the meeting show the same page of the presenter and they don’t need to change the page themselves.

If my understanding is correct, the presenter can change the Skype Meeting Options when organizing the meeting as screenshots show below:

Please feel free to post back if you need further assistance.

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Not exactly what I am looking for I believe.

Here is a scenario:

Sales Manager is preparing a session for all his sales people, and he has requested that four product manager present the latest update on their products to the team.

All four product managers prepare their presentation and send a copy to the Sales manager, who in order to make it easier, copies all the presentation into one presentation, that he then intends to present at the meeting.

In a normal fashion, all four product managers are now going to speak one by one, and they will ask the sales manager to advance the slides one by one - which makes the presentation not flow as easy - most people would want to pace their own presentation as they speak.

My suggestion is to have a function that basically works like any of the wireless presenters from Logitech and others. They have a slide advance and reverse button.

My thought would be that Skype had a slide advance and reverse button, that any of the people on the call identified as presenters can press (or they could take ownership of the buttons and release the ownership when it is the next presenters turn).

When the advance slide button is pressed by any of the presenter participants, that function is then forwarded to the computer that is actually sharing its screen, and if the function works like the Logitech presenter, the slide on power point would automatically advance - that being when the slide presentation is loaded in powerpoint or if the slide presentation is in presentation mode.

That would actually be pretty nifty - and make Skype for Business integrate even better with Office 365.

About “most people would want to pace their own presentation as they speak”, the participant of the meeting can click the “Take Over as Presenter” when it is his turn to slide advance and reverse button to give the presentation.

Moreover, meeting participate have access to slide advance and reverse button to view the PowerPoint themselves. If other participates want to view the PowerPoint by following the presenter’s desktop, they can select “back to presenter view”.

Lot of good ideas - thanks

I was not trying to find a solution within the current product - those are fairly well known.

The problem is that most presentations are not that "clean"

Most times the main presenter is sharing his/her desktop, not the presentation. ... to be more flexible in switching content when needed. Lot of times the presentation is not even in presentation mode.

If everyone would always share just their presentation, and in presentation mode, it would work much easier, but that is not the case in normal business meeting environments. 

My ideas would tie Skype much closer to PowerPoint, and make it work any way that the content is shared: desktop, not in presentation mode, or presentation in presentation mode. Every way would work. It would be pretty nice.

The main presenter would press a button to: "Allow other presenters to advance slides", and now who ever is talking about their content in the main slide deck, can control their content, without having to ask the main presenter to advance the slides.

This is an idea that should be forwarded to development and evaluated for its merits.

There is no need to find other solutions within the current product to solve it. That was never my intent.

We have a dedicated channel for customers to submit feedback. I welcome and encourage you to share your ideas via the link: https://www.skypefeedback.com/forums/299913-generally-available

Users' constructive ideas will help better our products and services. We appreciate your efforts.

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Information Services Division

Service Reference - Skype for Business

1 Instant Messaging Presence and Contacts

• 1.1 Presence
• 1.2 Instant Messaging
• 1.3 Contact Card Configuration
• 1.4 My Picture Configuration
• 1.5 Contacts List Configuration
• 1.6 Address Book and Distribution List
• 1.7 Persistent Chat
• 1.8 Photos of Sender/Receiver
• 1.9 Privacy Mode

2 Skype-to-Skype Audio, Video, and Media

• 2.1 Skype-to-Skype Audio and Video Calls
• 2.2 Skype-to-Skype High-Definition Video
• 2.3 File Transfer
• 2.4 Skype-to-Skype Desktop and Application Sharing

3 Skype for Business Online Meetings

• 3.1 Ad-Hoc Skype for Business Meetings
• 3.2 Skype for Business Multiparty Audio and Video
• 3.3 Presenter Controls
• 3.4 Participant Views
• 3.5 Multiparty Desktop and Application Sharing
• 3.6 PowerPoint
• 3.7 Web Conferencing Tools
• 3.8 Polling
• 3.9 Recording and Playback
• 3.10 Meeting Lobby
• 3.11 Authentication and Skype for Business Web App Users
• 3.12 Scheduled Meetings from Outlook
• 3.13 Scheduled Meetings from Outlook Web Access
• 3.14 Scheduled Meetings with Skype for Business Web Scheduler

4.  Technical

• 4.1 Meeting limits across Office 365 options
• 4.2 Meeting retention limits
• 4.3 Meeting Expiration
• 4.4 Ports and outgoing connections

5. About the service

• 5.1 Support Description
• 5.2 Acceptable Use

Instant Messaging Presence and Contacts

Presence is the ability to detect another user’s availability. Using Skype for Business, users can display their presence status—for example, Available, Away, Do Not Disturb, or Offline—to let others know their availability. Skype for Business presence information is presented throughout the Office 365 suite, such as in OneDrive for Business, which shows the status of the person who last edited a document. Users can instantly find and communicate with people from within Microsoft Outlook. This connection occurs wherever the user sees a coloured presence indicator that represents a person’s presence status. The user can then click the presence icon and initiate a communication by using Skype for Business and the interactive Office contact card. This feature is called “click-to-communicate.”

When Outlook calendar integration is enabled, a user can check another user’s schedule and get up-to-date availability information directly from that person’s calendar. This makes it easy to determine when someone will be available.

Instant Messaging

Instant messaging (IM) is the ability to transfer text messages in real time over an Internet Protocol (IP) network such as the Internet or an organization's corporate network. Instant messaging is available for both Skype-to-Skype and multiparty communication. IM text is encrypted for enhanced security.

Contact Card Configuration

Customers can configure how their own Skype for Business contact card appears to other people.

My Picture Configuration

If picture display is enabled, users can also change their picture from the default picture that is stored in the directory service. With Skype for Business for Office 365 client users’ replacement pictures can be of any fidelity, including high-definition (HD), and of any size. Exchange will adjust the file size and image dimensions to make it suitable for the contact picture.

Contacts List Configuration

You can create a persistent list of contacts for all Skype for Business users, ensuring that the contact information a user requires is immediately available. You can add other users to your Contacts list, organize, and group these contacts in different ways (by department, for example). You can also search those user's company address books to find other users—which means it is not necessary to add someone to the Contacts list to detect presence or send an instant message.

Address Book and Distribution List

Using Skype for Business, service users can search the address book for other users in their organization. They can also add email addresses and distribution lists to their Contacts lists. Instant messages can be sent to individual members of a distribution list or the entire distribution list. Distribution lists can be expanded to see the individual members.

Persistent Chat

Not available.

Photos of Sender/Receiver

Within the Skype for Business IM window, photos of the sender/receiver appear inline with the conversation. This adds visual context to IM conversations, particularly in meeting scenarios where multiple people may be chatting at the same time.

Privacy Mode

With enhanced presence privacy mode, users can restrict their presence information so that it is visible only to the contacts listed in their Skype for Business Contacts list. When enabled, the option to restrict presence information to contacts becomes available in the Skype for Business status options. When disabled, users can choose either to always let everyone see their presence information, or to adhere to any future changes the administrator makes to the privacy mode.

Skype-to-Skype Audio, Video, and Media

Skype-to-skype audio and video calls.

Skype for Business Online users can make one-to-one computer-based audio and video calls to other Skype for Business users using a PC and a web camera. A Skype for Business Online user can initiate Skype-to-Skype audio and video calls with another user in the same Skype for Business Online organization (within or outside the corporate firewall), or with another Skype for Business user in a Skype for Business federated domain as long as the two Skype for Business domains are correctly configured, supported, and permitted for federation.

Skype-to-Skype High-Definition Video

High-definition video (1920 x 1080) is supported for peer-to-peer calls between users running Skype for Business on high-end computers.

The resolution viewed by each participant in a single conversation may differ, depending on the video capabilities of each user’s respective hardware.

File Transfer

Skype for Business provides PC-to-PC file transfer that lets users transfer files as part of a Skype for Business session.

Skype-to-Skype Desktop and Application Sharing

Skype for Business provides PC-to-PC data sharing capabilities including desktop sharing and application sharing.

Skype for Business Online Meetings

Ad-hoc skype for business meetings.

Users can start or join an ad-hoc Skype for Business Meeting with just a few clicks in the Skype for Business client or in Office. Skype for Business lets users escalate simple instant messaging conversations or email conversations to PC-based, multiparty audio and video meetings with shared desktops, applications, and documents.

Skype for Business Multiparty Audio and Video

Skype for Business provides for Skype for Business-based, multiparty (three or more users) audio conferencing capabilities. Skype for Business multiparty audio provides users with an adaptive audio codec for optimal performance under varying bandwidth conditions, visual call and roster controls, network quality indicator, and powerful user management features (for example, drag and drop a participant name to add them to a meeting).

In addition to audio, Skype for Business enables users to connect through high quality video sessions. Both person-to-person and multiparty (three or more users) sessions are supported. Active speaker video is available only for multiparty sessions. With Skype for Business, users can easily schedule an online meeting with video or seamlessly escalate an IM session to a video call.

The video experience is enhanced by the following features:

• HD video    Users can experience resolutions up to HD 1080P in two-party calls and multiparty conferences.
• Gallery View    In video conferences that have more than two people, users can see videos of participants in the conference. If the conference has more than five participants, video of only the most active participants appears in the top row, and a picture appears for the other participants.
• H.264 video    The H.264 video codec is now the default for encoding video on Skype for Business desktop clients. H.264 video supports a greater range of resolutions and frame rates, and improves video scalability.

Presenter Controls

In Skype for Business meetings, presenters have access to the following meeting controls:

• Mute or unmute all attendees, or mute individual attendees.
• Block attendees from starting video.
• Hide names on the pictures.
• Change permissions so that all participants are attendees instead of presenters.
• Send email invitations to additional people.
• Backstage content preview if the user is a presenter.

Participant Views

In a Skype for Business meeting, participants can select from the following options depending on how they want to view the meeting content, presenter, or participants:

• Gallery View shows all the participants’ pictures, or videos, plus meeting content.
• Speaker View shows the presenter’s picture or video at the lower-right corner of the meeting window, plus meeting content.
• Presentation View shows only the meeting content.
• Compact View shows the tiles of the participants’ pictures in a compact window.

Multiparty Desktop and Application Sharing

Skype for Business provides powerful PC-to-PC and multiparty data sharing capabilities. Desktop sharing enables presenters to broadcast any visuals, applications, webpages, documents, software, or part of their desktops to remote participants in real time, right from Skype for Business. Audience members can follow along with mouse movements and keyboard input. Presenters can choose to share the entire screen or only a portion.

Application sharing enables presenters to share control of software on their desktops without losing sight of participant feedback or text questions. Presenters can also delegate control of the application to meeting participants.

Skype for Business provides multiparty PowerPoint presentation, with higher-resolution displays and support for PowerPoint capabilities, such as animations, slide transitions, and embedded video. Mobile devices can also access the presentations because the feature uses standard HTML 5 and JavaScript to broadcast PowerPoint presentations. Users with the appropriate privileges can scroll through a PowerPoint presentation independent of the presentation.

Web Conferencing Tools

Skype for Business provides multiparty web conferencing capabilities including virtual whiteboard and annotations. A whiteboard is a blank canvas that can be used for collaboration, with text, ink, drawings, and images. Annotations made on whiteboards can be seen by all meeting participants. The whiteboard feature enhances collaboration by enabling meeting participants to discuss ideas, brainstorm, take notes, and so on.

The polling feature enhances collaboration by enabling presenters to quickly determine participants’ preferences. During online meetings and conversations, presenters can use polling to gather anonymous responses from participants. All presenters can see the results and can either hide the results or show them to all attendees.

Recording and Playback

The recording feature allows organizers and presenters to record all aspects of a Skype for Business session, including who entered the meeting, audio and video, and content from IM conversations, program sharing sessions, PowerPoint presentations, handouts, whiteboards, and so on. Organizers and presenters can choose 480p, 720p HD, or 1080p Full HD as their preferred resolution for client-side recordings. Recordings are saved to the organizer’s or presenter’s computer. To make a recording available to others, the organizer or presenter can move or copy the recording to a shared location.

Meeting Lobby

With the Lobby feature, users decide who gets into the meeting directly, and who waits until the presenter lets them in. This feature is recommended for large meetings, or meetings that will involve confidential or sensitive information. Different Lobby options can be set for users who are connecting through a Skype for Business client and users who are dialling in.

Authentication and Skype for Business Web App Users

Skype for Business now supports both authenticated and unauthenticated Skype for Business attendees. If a user receives a Skype for Business Meeting invitation but does not have an account with your organization, he or she can still join the meeting by using Skype for Business and signing in with the Guest account.

Scheduled Meetings from Outlook

The Skype for Business desktop client includes an Outlook plug-in that provides users with single-click scheduling of online meetings in Outlook. Participants can join with a single click from the Outlook reminder, or through the Outlook meeting itself. Organizers can set up meetings using predefined conference properties, or can set meeting types and admission policies for specific needs. Details (such as meeting time, location, and attendees) follow the familiar Outlook template, and conference call-specific information (such as dial-in number and meeting passcode) are automatically populated (access phone numbers require a third-party dial-in audio conferencing service).

Scheduled Meetings from Outlook Web Access

Skype for Business Online users who also have Exchange Online can use Outlook Web Access to set up Skype for Business Meetings. Details (such as meeting time, location, and attendees) follow the familiar template, and conference call-specific information (such as dial-in number and meeting passcode) are automatically populated (access phone numbers require a third-party dial-in audio conferencing service).

Scheduled Meetings with Skype for Business Web Scheduler

Skype for Business Web Scheduler provides a web-based way to schedule a Skype for Business Meeting. It provides a browser-based conference management experience that includes operations such as the following:

• Scheduling a new online Skype for Business meeting
• Viewing a list of existing meetings that the user has organized
• Viewing and modifying details of an existing meeting
• Deleting an existing meeting
• Sending invitations
• Joining an existing meeting

Conversation Limits

There is a limit of 50 conversations open at any one time.

File Transfer Limitations

If your attempts to upload attachments to a conference or to send files to a contact generate an error message, this means either that the contact that you’re sending the attachment to doesn’t have permission to receive files or that the file type is blocked. In Skype for Business Online, certain files types are blocked by the Intelligent Instant Message Filter (IIMF) application. IIMF helps protect Skype for Business Online users against the most common forms of viruses without degrading the user experience. By default, Skype for Business Online is configured to prevent users from sending files through IM that have the following file name extensions:

.ade, .adp, .app, .asp, .bas, .bat, .cer, .chm, .cmd, .com, .cpl, .crt, .csh, .exe, .fxp, .grp, .hlp, .hta, .inf, .ins, .isp, .its, .js, .jse, .ksh, .lnk, .mad, .maf, .mag, .mam, .maq, .mar, .mas, .mat, .mau, .mav, .maw, .mda, .mdb, .mde, .mdt, .mdw, .mdz, .msc, .msi, .msp, .mst, .ocx, .ops, .pcd, .pif, .pl, .pnp, .prf, .prg, .pst, .reg, .scf, .scr, .sct, .shb, .shs, .tmp, .url, .vb, .vbe, .vbs, .vsd, .vsmacros, .vss, .vst, .vsw, .ws, .wsc, .wsf, .wsh

• There are no file size limits for Peer-to-Peer communications
• There is a 500MB file size limit for Meetings

Transferring files to Skype contacts isn't supported.

Meeting limits across Office 365 options

• File upload limit    The maximum size of files that can be uploaded to a Skype for Business meeting, including handouts and PowerPoint presentations.
• Participants in a Skype for Business meeting    The maximum number of participants (including the presenter) who can join a single Skype for Business meeting.
• Presenters in a Skype for Business meeting    The maximum number of presenters in a single Skype for Business meeting.
• Skype for Business web app meeting participants    The maximum number of Skype for Business web app meeting participants who can join a meeting.
• Skype for Business web app anonymous participants    The maximum number of Skype for Business web app meeting participants who can anonymously join a meeting.
• Guests joining by phone    The maximum number of guests who can call in to a meeting.

Meeting retention limits

• Meeting content retention period    The amount of time after the last person leaves a meeting that any uploaded meeting content is retained in Skype for Business before it is permanently deleted.
• Meeting expiration period    The amount of time after a meeting has ended that users can access the meeting.

Customers using Skype for Business Online can upload content to a Skype for Business Meeting as attachments, such as PowerPoint presentations, OneNote files, and other files. The retention period for content that has been uploaded to a meeting is as follows:

• One-time meeting    Content is retained for 15 days starting from when the last person leaves the meeting.
• Recurring meeting    Content is retained for 15 days after the last person leaves the last session of the meeting. The retention timer resets if someone joins the same meeting session within 15 days. For example, assume a Skype for Business meeting is scheduled to occur on a weekly basis for one year, and a file is uploaded to the meeting during the first instance. If at least one person joins the meeting session every week, the file is retained in Skype for Business Online servers for the entire year plus 15 days after the last person leaves the last meeting of the series.
• Meet Now meeting    Content is retained for 8 hours after the meeting end time.

Meeting Expiration

Users can access a specific meeting after the meeting has ended, subject to the following expiration time periods:

• One-time meeting    Meeting expires 14 days after the scheduled meeting end time.
• Recurring meeting with end date    Meeting expires 14 days after the scheduled end time of the last meeting occurrence.
• Meet Now meeting    Meeting expires after 8 hours.

Ports and outgoing connections

Create a rule that allows outgoing connections (TLS and HTTPS) for all users to these locations:

• *.partner.microsoftonline.cn
• *.partner.microsoftonline-p.cn
• *.onmschina.cn
• *.sharepoint.cn
• *partner.outlook.cn
• *partner.lync.cn

Set the HTTP/SSL time-out value to eight hours.

About the service

Support description.

ISD will support supported features of Skype for Business on Desktop @ UCL. ISD will provide documentation and best efforts support for other clients.

Acceptable Use

Skype for Business is available for use under the normal acceptable use conditions. Communication using Skype for Business should be conducted in the same manner as a email. Messages could be recorded by either the sender or receiver.

Instant Messaging, Audio and Video calls to large Distribution Lists held within the Global Address List is not permitted.

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Trouble and limits using Skype for Business real Pexip Infinity integrations

Here topic describes any limitations and provides troubleshooting guidance when integrating Microsoft Skype for Business and Lync * with Pexip Infinity . He covers which following issues:

• SfB/Lync client doing did connect to Pexip Endless conference
• SfB/Lync client can triumphantly connect to the Pexip Infinity conference, but audio and/or video is does working in one or both directions
• Collecting SWIG logs employing the SfB/Lync Server Logging Tool
• Conference status shows backplanes to a merged SfB/Lync meeting with no participants
• Poor figure quality and delays when sharing content after SfB/Lync
• Received content capacity be slow to update
• DNS resolution failures
• Sending messages with a SfB/Lync client to a locked conference
• SfB/Lync participants do doesn receive presentations / page split
• Happy from Pexip participants not included in ampere Skype required Business / Lync meeting rec
• SfB/Lync presenter sees "Someone has joined and can't see what's being presented or shared" notification
• SfB/Lync users visit low-resolution presentations in small scale
• Can only make audio bawls when employing a Cisco VCS used call control
• Poor sounds quality
• Problems connect to SfB/Lync meetings via the Virtual Reception (IVR gateway)
• Problems attach gateway calls to SfB/Lync clients
• Gateway clients exist disconnected from SfB/Lync meetings
• Audio-only calls when utilizing a VCS for call control
• Pexip VMR players can't see shared PowerPoint files
• Shared PowerPoint files are retard to display to Pexip participants
• Occasional dropped video frames
• Pexip only transmits low resolved the mobile SfB clients

* Note which where that documentation refers to " SfB/Lync ", it represents both Microsoft Skype for Business and Lync unless stated other.

For one select of known functional with Pexip Infinity and Microsoft Skype for Business and Lync integrations, see Limitations .

SfB/Lync employer does not connect to Pexip Infinity conference

• Verify that a Virtual Meeting Room including the alias being phoned exists over the Management Node .

Verify which the Conferencing Node received an SLURP CALL request from the SfB/Lync client (via the FEP):

• Management Node support log ( Site & Logbook > Support log )
• SfB/Lync FEP logging tool
• Check if the Conferencing Null take the call is in maintenance mode.

If the SfB/Lync client did to connect to the conference altogether, we need to verify that the alias exists on the Management Snap . After that has been verified, check if the Conferencing Node receives the SIP INVITE request from the SfB/Lync client. This can be read both on this Conferencing Null (with the support log) and on the FEP servicing the SfB/Lync customers (using the SfB/Lync lustration tools).

A normalize SIP call flow between a SfB/Lync client and of Pexip Infinity Conferencing Node should be:

After ICE negotiation shall completed between the SfB/Lync user and the Conferencing Node , the SfB/Lync client should send a second INVITE to signal the ICE discussion completion. If this second INVITE has not seen, this is a strong clue of a storage connectivity issue between the two colleagues.

Conferencing Node is in maintenance mode

If adenine Conferencing Node in a trusted petition pool is placed into maintenance mode, and a SfB/Lync server sends a call to that snap, the node will respond including 503 Favor Unavailable real which claim intention then fail ( SfB/Lync willing non sample another node in the pool).

Therefore, with yours need to put a Conferencing Node into maintenance mode, ourselves recommend that you awaiting until all SfB/Lync calls on ensure node have finished, and then you should temporaries remove the node out the familiar application pool and then place it into maintenance method. An node should then be returned to the trustworthy application pond after it has been taken back out of maintenance play.

SfB/Lync patron can successfully combine on the Pexip Infinity conference, but audio and/or video is not working in one or both directions

• Verify ensure to SfB/Lync consumer is correctly configured with an audio and video devices.
• Revise that the call from the SfB/Lync client is placed because a view call rather than adenine SfB/Lync (audio-only) call.
• INVITE out SfB/Lync client should contain m=audio additionally m=video lines in SDP
• 200 OK response from Pexip Endless should in m=audio press m=video multiple in SDP.
• Validate which firewall configuration allowances relevant media traffic.
• Verify that SfB/Lync client receives RTP media from Pexip Infinity (using for instance Wireshark).
• Verify that Pexip Infinity Conferencing Node receives RTP media from SfB/Lync client (using for instances tcpdump).

Collecting SIP logs using the SfB/Lync Server Logging Tool

The Microsoft Debugging Tools bucket be unloaded from:

• Lync Server 2013: http://www.microsoft.com/en-us/download/details.aspx?id=35453
• Skype for Business Server 2015: https://www.microsoft.com/en-us/download/details.aspx?id=47263

The default location by installation of an logging tool is:

• Lync 2013: C:\Program Files\Microsoft Lync Servers 2013\Debugging Tools\OCSLogger.exe ;
• Skype for Business Server 2015: C:\Program Files\Skype for Business Server 2015\Debugging Tools\CLSLogger.exe

Note nevertheless that a different our may have been chosen at the time of installation.

Afterwards opening who logging tool, the following selection is standard suitable for initial troubleshooting of failing calls between SfB/Lync and the Pexip Infinity Video Node :

Components: SIPStack, InboundRouting and OutboundRouting

(Note that the InboundRouting and OutboundRouting components are only available to a FEP)

• Degree: Information
• Flags: All Flags

To use the Lync Server logging tool:

• Select Start Logging additionally place a new call free the SfB/Lync client towards the Pexip Infinity conference alias.
• After the call has failed, select Stop Logging .
• Select View Log Files .
• Choose Look in the dialog what appears, and save the result texts file with a suitable location.

Conference status shows backplanes for a merged SfB/Lync meeting by don participants

After a Pexip VMR has been merged with a SfB/Lync meeting , when viewing the conference status informations for the VMR she could see one or more backplanes to the SfB/Lync server show on have no participants connected to that SfB/Lync node. One way in which this can occur is is a SfB/Lync employer dials into a Pexip VMR, visits other SfB/Lync contacts into the meeting and then any of those participants disconnect.

Every a SfB/Lync client that is dialed into a Pexip VMR adds a get in the meeting, to ad hoc SfB/Lync meeting is created and it is merged at one Pexip VMR. A backplane your established between the SfB/Lync meeting and the Pexip VMR. That backplane will proceed till exist even are all in the entrants in the SfB/Lync meeting disconnect. The backplane lives only interpreted down when the Pexip VMR conference ends.

Therefore if the SfB/Lync client the any others SfB/Lync contacts which had come in the ad hoc SfB/Lync meeting all disconnect, you determination continue the see the merged SfB/Lync meet as a remote media node not with cannot participants connected toward items.

Note that the distance media swelling of a merged SfB/Lync conference is identified over that address in and SfB/Lync guest the initiated the SfB/Lync meeting .

Poor image quality and delays at sharing content by SfB/Lync

This can occur when the maximum inbound or outbound phone throughput is too low.

Ensure this that Maximum inbound call bandwidth and Maximum outbound call broadcasting advanced configuration settings for the Virtual Meeting Leeway or Virtual Auditorium is the least 1024 kbps.

Receipt content can be slow to update

Updates to content being got by a SfB customer via Pexip Infinity canister in some cases to slow to load when view in "fit to window" mode. If that same table is viewed in "actual size" mode, the images are recent the expected. This occurs when content is being shipped via RDP; content sent via Video-based Screen Sharing (VbSS) lives not affected. In resolve this question, ensure that VbSS exists enabled up the Skype for Business server, and on Pexip Infinity ( Platform > Global settings > Connectivity > Enable VbSS for Skype to Business ).

DNS settlement breakdowns

The following slip messages anzeigten such DNS is not resolving addresses correctly:

• Billing fail UPDATE appears how the disconnect reason when viewing participant status
• RFC3263 lookup failure appears in a support.dns log entry in the support log

Sending news from a SfB/Lync client to a locked congress

If one SfB/Lync patron initiates an IM session with adenine locked Pexip Infinity attend and attempts to send a message, it will appears to the SfB/Lync client as though the request has been successfully sent.

Even, misc participation in the Pexip Infinity conference will not see the message. That SfB/Lync my will intermediate appear within the conference subscriber list however does be allow inches to the unlock conference (as they live did currently sending any audible or video).

SfB/Lync participants do not receive presentations / table sharing

SfB/Lync participants will not receive presentation content if Pexip Infinity is nay configured to enable outbound calling to SfB/Lync clients.

You must config Pexip Infinity to enable outbound calls to SfB/Lync clients. This inclusive ensuring that every Conferencing Node belongs configure to ampere TLS server attestation that is trusted by the SfB/Lync our environment, additionally that every node has its unique Configured FQDN setting configured. Visit Certificate design and requirements for Skype for Business integrations used more information.

Content upon Pexip participation not included in a Skype required Business / Lync meeting recording

If a Skype for Business client runner on Windows 7 attempts to record a Skype for Business / Lync meeting , the recording is not include any content from Pexip participants calling into the meeting through the Infinity Gateway .

SfB/Lync presenter sees "Someone has joined and can't view what's being presented or shared" notification

Supposing a SfB/Lync attendee in a SfB/Lync gather is presenting for another apparatus connects the SfB/Lync meeting via the Unbounded Gateway , that SfB/Lync moderator will see a "Someone is joined and can't see what's being presented or shared" notification.

Nevertheless, the gateway participation will be abler to see the presentation. The notification will disappear to approximately 15 seconds.

SfB/Lync users see low-resolution presentations in small graduation

If a standards-based endpoint transmits a double stream presentation under a very low resolution, the transcoded submission will be sent in native resolution to any bonded SfB/Lync clients.

This may create a sub-optimal experience depending on aforementioned PC screen total the the SfB/Lync end-user PC.

Can only make audio calls when using a Cisco VCS for click operating

Supposing an Cisco VCS is utilised as call control amidst a Event Node and a Lync 2013 FEP, only tone calls am allowable.

Which FEP and the Conferences Node s ought be neighbored directly and then media and video calls will work as expected.

Arms sound superior

AVMCU calls support a most of G.722 (7 KHz audio), while Pexip Infinity supports up to AAC-LD (48 KHz audio). Under certain circumstances (for example, a meetings room including weak acoustics and many people speaking) there allowed be a perceptible difference in sound quality between somebody endpoint when utilizing G.722 plus the same endpoint when able to use a wider-band codec.

Problems connecting to SfB/Lync meeting sulphur via the Virtual Reception (IVR gateway)

The following table describes the typical problems real suggested resolutions for issues related to connects till SfB/Lync meeting sec via the Virtual Reception (IVR gateway).

For more information, see Routen indirectly over ampere Virtual Reception (IVR gateway) .

Problems connecting gateway calls to SfB/Lync our

The following table describes the typical problems and suggestions resolutions for issues related to allowing devices to call SfB/Lync client via the goal.

For more information, see Configuring guidelines to permission devices to call Skype for Commercial / Lync clients go this gateway .

Gateway clients are disconnected from SfB/Lync meeting s

The following table describes the typical problems and suggested resolutions for issue related to gatewayed participants being disconnected from SfB/Lync meeting s.

Audio-only calls when using a VCS for call control

If one Cisco VCS is used as call control between a Conferencing Node and a Lync 2013 FEP, only audio calls represent possible.

Lync FEP and Conference Node s should is neighbored forthwith then audio and video telephone will work as expected.

Pexip VMR participants can't view shared PowerPoint files

If participants that become connected to one Pexip VMR that exists merged with a Skype for Business / Lync conference , or that are in a gateway call, can't see shared content when a SfB/Lync average gets Show files, the most probably reason is that SIP TLS verifications mode is On ( Platform > Global settings > Guarantee ) and that Pexip Infinity performs not trust the SfB/Lync Front End Server / FEP or Mesh Conferencing Side device (it is always which Labyrinth Conferencing Edge for federated connections). With the server is not proven, Pexip participants will not see any content.

If get are the kasus you will look einem " unknown APPROVAL " message similar to this in the Pexip Infinity support log:

Level="ERROR" Name="support.ms_data_conf.ms_data_conf" Message="PSOM connection make 1 failed" Remote-address="lync-fep.example.local" Remote-port="8057" Error="SSL Alert" Reason-code="0x230" Alert-type="fatal" Alert-description="unknown CA" File uploading limit The maximum bulk of folder that can be uploaded to a Skype for Business meeting, including handouts or PowerPoint ...

To resolve this, ensures that who trustworthy CA certificate of the apposite Lync Front End Server / FEP or Web Corporate Edge device is uploaded to the Management Node ( Program > Dependable CA certificates ).

Shared PowerPoint files are slow to display to Pexip participants

Depending on the size of the Baur register, it can take a long time to display the presentation topics to Pexip participants. Diese delay occurs during Pexip Infinity waits for of SfB/Lync server to make the presentation computer (JPEG images) obtainable.

The time spent waiting is shown in the Pexip Infinity support log, for model:

Level="INFO" Name="support.ms_data_conf.ms_data_conf" Message="Got download information for all PowerPoint JPEGs" Content-ID="1" Ppt-title="example.pptx" Download-URL-Base="https://webpool.infra.lync.com/DataCollabWeb/Fd/29f...J89/" Waited="118.913 seconds"

Gelegentlich dropped video frames

For rare occasions, some SfB/Lync users in a SfB/Lync meeting may occasionally experience dropped video frames from VTC endpoints that what gatewayed into this meeting.

Pexip only transmits low resolutions to mobile SfB client

A mobile SfB client (iOS and Android), or SfB Mac client that is dialed into a Pexip Infinity VMR will never request anything higher than 360p. Get means that although Pexip Infinity may receive an higher resolution film from the SfB client, it will one send up to adenine limit of 640x360 to the SfB client (and limited the 180p for movable real 360p to tablet devices).

© 2024 Pexip AS v 34

PowerPoint and Skype for Business appear the wrong size on external monitors

If you have more than one monitor and the external monitor has a different screen resolution than the primary monitor, you may encounter an issue where PowerPoint or Skype for Business displays very large or very small.

Microsoft has already released a fix for this issue. You can confirm whether your app has the update by checking the version numbers below. The fix requires Windows 10 version 1607, also known as the Windows 10 Anniversary Update.

However, you may still encounter blurry text in Office applications when using multiple monitors. See the Help article Office apps appear the wrong size or blurry on external monitors  for more information.  

Fixed in PowerPoint and Skype for Business

PowerPoint 2016, PowerPoint 2013, Skype for Business 2013, and Skype for Business 2016 now support the situation where you have more than one monitor and the external monitor has a different screen resolution than the primary monitor. You have to have certain versions (or newer) of Office and Windows 10 on your computer in order to see the fixes.

For this fix, the required version of Windows is: Windows 10 version 1607, also known as the Windows 10 Anniversary Update.

For this fix, the required version of PowerPoint or Skype for Business is described in the following section:

Updated versions of PowerPoint and Skype for Business

If you’re a home user of Microsoft 365, Office 2016, or Office 2013, by now (July 2017) you should have already received the updates described in this article.

If you are a business user of Microsoft 365, Office 2016, or Office 2013, by now (July 2017) you may or may not have received the updates described in this article. The schedule on which you get Office updates depends on the organization's wishes.

You can confirm whether your app has the update by checking the version number of Office under the File menu of any Office app. There are two different technologies for installing Office 2016. The technology used for your installation determines the version number you need to look for. Here’s how to look up this information:

On the File menu, click Account (on the left side of the page).

On the right side of the page, under the Product Information section, you'll see application and update information that looks like either the first picture (which represents the “Click-to-Run” installer technology) below or the second picture (which indicates the Microsoft Installer technology):

"Click-to-Run" looks like:

"Microsoft Installer" looks like:

If you see two buttons, as shown in the first picture above, the minimum version number that contains the update is:

If you see one button, as shown in the second picture above, the minimum version number that contains the update is:

Office 2013 and Office 2016 for home products are kept up-to-date automatically.

Microsoft 365 for business subscriptions are kept up-to-date automatically. The product is rolled out gradually; not everyone receives the update at the same time. If you work for an organization that has Office but doesn't have Microsoft 365 subscriptions, the organization likely controls when you get Office updates.

Go to Install Office updates for more information if you want to make sure you have the latest update.

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