Start a video call. By Jeff Schertz Aug 31, 2014 Media. If joining a webinar, users joining through Skype for Business/Lync will join as panelists. 1 branch 3 tags Go to file Code jmfernandez Added mypy validation dependencies to pre-commit profile used by GitH… 5bd9fd2 on Sep 10, 2022 5 commits. Although you can call the CredentialRequestedEventArgs. Here is what I need to do: I need to build a console app that signs in (not using current user or lync session) to a Lync Server and send a message to a specific contact (userUri). SfB/Lync client does not connect to Pexip Infinity conference Checklist. We have written a Lync SDK (API) application, which is running with Lync Client to process the Lync calls. There was one problem in that the the Lync Client was not able to download the cert that was needed, whereas the iOS version was. Restart the outlook and Lync. We have written a Lync SDK (API) application, which is running with Lync Client to process the Lync calls. I have a problem trying to develop a lync desktop client using VB . If Auto-detect server is turned on but you still can’t sign in, try manually entering the internal and external discovery addresses. Also as an added issue we have 3 versions floating out there. (If you don’t see these options, your Lync administrator hasn’t given you permission to create and manage chat rooms. 0. Find centralized, trusted content and collaborate around the technologies you use most. LyncClient. In addition to the release of the new client, this update fixes a list of issues. 4. It’s a “light” program that takes up very little space on your hard drive and is relatively quick to start. With Lync-Skype Connectivity, Skype users and Lync users can add each other as contacts, exchange instant messages (IMs), and make audio calls. Delete all files within this directory. Thanks for your reply, Jay61111. To test the script i first create folders named by timestamp. This library is available through pip as pyncclient-ext . Set feature installation states: expand and choose Microsoft Lync, select "run from my computer". Understanding Lync Modalities. Click on Download. With this yesterday’s release of the Lync 2010 Release Candidate software to the general public I’m already seeing people attempting to use the Lync client to sign-in to an existing Office Communication Server 2007 R2 server. If Auto-detect server is turned on but you still can’t sign in, try manually entering the internal and external discovery addresses. · Hi, We are no longer experiencing the. Download Zoom apps, plugins, and add-ons for mobile devices, desktop, web browsers, and operating systems. I know there is no native way to add custom emoticons to my lync clients therefore I am trying to find a workaround. Model. Until Office 2016 is released, THIS is your client-side update path to Skype for Business: Install Lync 2013 from Office 2013 and then patch it with this (or a later) update & the necessary pre-req’s. Do a find for communicator in the regestry - (hkey_current_user) / Software / Microsoft / Communicator / (Delete the. We’re going to specify the Lync DLLs and we know where they’re stored. . The version number of this update is 15. ; Verify that the Conferencing Node receives the SIP INVITE request from the SfB/Lync client (via the FEP): Skype for Business Server (formerly Microsoft Office Communications Server and Microsoft Lync Server) is real-time communications server software that provides the infrastructure for enterprise instant messaging, presence, VoIP, ad hoc and structured conferences (audio, video and web conferencing) and PSTN connectivity through a third-party gateway or SIP trunk. 2. 1. With that said, I don’t know if the components in the Lync SDK can meet that requirement of being a UAP at this time. Key Features: -Initiate a group IM or video conversation and invite additional participants. GetClient method, except that you pass a boolean true value in the method if you want a side-by-side endpoint. This answered my question. I have a test machine w7 machine with only office and lync installed. For enabled users, you'll notice that it's greyed out by default. The contact groups created in outlook manually won’t be searched in Lync. The Lync API (in the Lync SDK) was intended to replace both the IMessenger and UCC APIs. One of the new features in Lync Server is the ability to use the Address Book Web Query (ABWQ) component in place of the default Address Book Service (ABS) for the standard Lync client. Lync. Click File, and then click Office Account or Account. both work fine with Lync 2010. ) Accessing files See full list on github. In the preceding table, client port ranges represent a subset of the port ranges configured for your servers. now it no more needed to use extra plugin for this tool . You will also use this patch to turn your “Lync Basic” client into a “Skype for Business Basic”. Snooper is a. ConversationManager. 1. To change the setting use the following cmdlet to revert Lync back to the. Voice Call, Video Call, Desktop Sharing and Mute/Unmute in Skype for Business using Lync API and PowershellLync 2010 for iPhone extends the power of Lync to your mobile device – including rich presence, instant messaging, audio conferencing, and calling features from a single, easy-to-use interface. This is basically the same process as was used in Office Communications Server except that now there. This is the Lync for Mac 11 update. 0. net. Just type a new number or use the ones listed, which are pulled from the Phones options, if they’re already set up. Starting up it asks if I want to connect via the PC, I tell it next. This is actually a bug in the Release Candidate version of the client and will be removed in final. The rebranding comes more than three years after Microsoft acquired Skype for $8. I’ve long stopped blogging Lync 2010 client versions, but I recently had cause to go for a bit of a search, and there were some I encountered in the wild that I’d not previously documented here. How does Lync client connect to Lync Server Standard Edition in this scenarios: a) Lync client running on Win7 domain member workstation in corporate LAN. The path that each takes depends primarily on the. Polycom has recently announced native Lync support for a wide variety of standard SIP phone devices which all run on the same Polycom Unified Communications Software (UCS) software release. The HDX RealTime Media Engine is a Citrix Workspace app plug-in that supports clear, crisp high-definition audio-video calls, particularly with Microsoft Skype® for Business. Run setup. When I run the service locally, everything seems to be running as expected. It also happens when people are not using Lync. Open a Windows PowerShell session and then enter the Import-Module cmdlet to import the Lync Online command module into the active PowerShell instance. I have connected three different audio devices. That would be something you’d have to ask the Lync team about. 2 Source: Github Commits: 86d98c00639514009519cfb36ca5ced70f6314a2, September. SamAccountName : jeff. _. 3. Microsoft Lync Basic 2013 (64 Bit) Microsoft Lync Basic 2013 gives you instant messaging (IM), audio and video calls, online meetings, availability (presence) information, and sharing capabilities all from one, easy-to-use program. In general, partner solution will need to meet this level of functionality to be qualified: 720p HD video quality. 2. Hi all, I have cleaned up this thread a little and would like to remind all participants to keep the tone of the conversation appropriate. Select Call me at, if you want Lync to call you at any number, such as your home or cell phone. Get apps, games, and more for your Windows device Login to the Office 365 Admin Center and then browse to Users > Active Users . Basically, you've got 2 options: Run the client in UI Suppression mode, in which case you'll need to implement ALL UI yourself (not great. Maybe its Communicator Windows Extension? I have a custom tab that i want to extend to Lync. 6891-6901 TCP Port range used by Skype for Business/Lync clients for file transfer. Microsoft Teams replaced Lync. pip install pyncclient. Is it possible to handle ApplicationSharingModality. Thank you for your contributions. Using the Logging Tool there are two different options available: View Log Files and Analyze Log Files . Lync. Multi-channel (inbound and outbound) Scripting tool and call guide. Click the arrow next to the Phone icon and select a number. Logitech Video Camera. This download contains an update for Lync for Mac 2011. In Microsoft 365, Lync data—contacts, presence. Python extended Nextcloud Client. Subscribe to an RSS feed of pyncclient releases Libraries. Thanks, that seemed to work for me. Microsoft® Lync™ Phone Edition for Polycom® CX500, Polycom® CX600 and Polycom® CX3000 is the first generation of software designed specifically for the phones from Polycom to interoperate with Microsoft® Lync™ Server 2010 and Microsoft® Lync™ Server 2013. I checked Microsoft Lync Server 2013 and it has all. This application can be used for sending text messages, having a voice or video chat and for conducting corporate meetings. File Save. Lync 2013 is available only for Windows. The LyncClient type exposes the following members. However,. Select remove. Determining your Lync desktop client version. Learn how Teams users and Skype users can communicate through chats and calls and the admin controls that apply. Depending on the meeting options set by the meeting organizer, you’ll either enter. The Edge server has one internal interface connecting to the FE and on external interface with. In the latest version for 2013, Lync gets even better. SfB/Lync client does not connect to Pexip Infinity conference Checklist. To download Lync, sign in to Microsoft 365, then at the top of the page, click Settings > Office 365 settings > Software > Lync. . Represents the Lync client and provides access to conversations and contacts via their respective manager classes. Solved: Successfully uninstalled pip-21. The client object model, which encapsulates and models the client SIP endpoint that is hosted in a running Lync 2013 process. Microsoft 365 includes Lync , which lets you have instant messaging (IM), audio and video conversations, and Lync Meetings. Learn more about CollectivesHello Samarjit, I am assuming your wcf service is running as a windows service. Then build the app, and go to the output directory (bin. However, Lync Server 2013 supports the following clients on computers that are running Mac OS 10. Object moved to here. When I try deploying the code to a VM, when I try starting a service, it errors out saying1. Start Registry Editor. 5 billion. This issue occurs in a Lync Server 2013 environment. Rather then searching for a contact, just do this: participants. If you are running Windows 7, you can check to see which version you will need to download by clicking the Start button, right-clicking Computer, and then clicking Properties. ; Verify that the Conferencing Node receives the SIP INVITE request from the SfB/Lync client (via the FEP):. 4815. dbo. 6 KB. Leverages familiar Lync client interface-minimizing end-user training. Restart Lync. For details about supported features, see Client comparison tables. Add the people you communicate with most to your Contacts list, so you can communicate with them quickly and easily. GetClient () still return an object that throws. 9. Currently I am running an ASP. When you browse for Lync on the device in the market, the app doesn't display in the search. Users can seamlessly participate in audio-video or audio-only calls to and from other HDX RealTime Media Engine users, native Skype® for Business and Lync® client. In Lync Server, a user registers with a primary registrar pool and is assigned a failover pool (or back-up registrar pool). Be sure to ask the user for credentials again. Features include: Full UCMA integration with Lync client and softphone integration. Well I have these things working good in the enviornment. 7577. 1 Answer. Model. If you are looking for an app that will make you more productive, Lync is a great option. Skype for Business Server (formerly Microsoft Office Communications Server and Microsoft Lync Server) is real-time communications server software that provides the infrastructure for enterprise instant messaging, presence, VoIP, ad hoc and structured conferences (audio, video and web conferencing) and PSTN connectivity through a third. It doesn't happen every time he does this, but it seems to happen at least a couple of times a day. By Jeff Schertz Dec 17, 2012 3PIP, VVX. I have. Summary: Read this topic to learn how to configure the client experience for Skype for Business 2015 users. The issue is always the same with the log below. The following sections describe how these endpoint. In File Explorer, navigate to the Tracing folder in your user profile directory—for example, C:Users<your_alias>AppDataLocalMicrosoftOffice15. Presence capability for video endpoints. I've used this query to gather data: USE rtcdyn SELECT COUNT(*) as Occurrences, CAST(rtcdyn. and place the filename. Hello, Here is a a new beta which has been released OCSCM 2. For a list of features supported on each mobile device, see the Mobile Client Comparison Tables in the Microsoft TechNet library. The Advanced Connection Settings under the Lync 2010 RC client’s Personal Options still shows the old Connect Using TCP/TLS radio buttons, but those options are greyed-out even if Manual Configuration is selected. Q&A for work. This is understandable as everyone wants to try out the new client and explore the new look and feel, yet deploying. 0. This is as good a time as any to mention that there are a few cases where policies and preferences overlap. 0. The environment is heavily locked down, and PC's only have access to the Internet via a defined IE proxy. Polycom has recently released the latest version of UCS firmware for the VVX line of SIP telephony devices. This article serves as a follow-up to a few previous articles which will further explain some of the requirements, capabilities, and limitations of the Lync Phone Edition firmware which appear to still be unclear to some and seem to warrant further. How this differs from my previous article on Lync and Exchange UM Integration is that focused on integrating Unified Messaging features like Voice Mail and the Outlook Voice. 1504 64bit and it still does not show the extension anywhere and click to dial fails on the first try but works. Important! Selecting a language below will dynamically change the complete page content to that language. Encrypted and Secure video and audio calls. The Test-CsClientAuth cmdlet enables you to determine whether a user can log on to the Lync Server by using a client certificate, you can run the Test-CsClientAuth cmdlet. The Microsoft TechNet documentation covering Technical Requirement for Mobility includes a statement explaining that “all mobility service traffic goes through the reverse proxy, regardless of where the origination point is” but does not explain exactly. This issue occurs because the Lync client does not properly obtain the federated partner in certain authentication paths in Office 365 operated by 21Vianet. In addition to all the features of Lync, Skype for Business provides new features with simplified controls. In your Outlook meeting request, click Join Lync Meeting. In this article. · I'm a c# guy, so I'll have to send you over to the C++ forum, here: Visual C++ · C++ is a . Either locate the desired account or use the Filters drop-down menu to quickly list only Unlicensed users. When you install Microsoft Lync 2013 SDK, you get a set of quick-start sample applications, including Windows Forms, Windows Presentation Foundation (WPF), and Silverlight projects. As of last week Polycom has released official support for native Lync integration with HDX Telepresence endpoints and RMX Infrastructure bridges among other products. From the Lync Server Management Shell issue the Get-CsWebServiceConfiguration cmdlet to view the current setting. whl; Algorithm Hash digest; SHA256: 523876bf8bff9a852389358ffd5595effdd2c9a588b8bff54482f3731a891c77: Copy : MD5What's new in version 0. This feature allows computers with lower CPU clock speeds to encode and decode higher resolution video. LyncClient. dll file. Ends the Lync session associated with your user ID, but Lync continues to run in the background. Lync 2010. Skype for Business 2015 provides a new user experience that is based on the Skype consumer product experience. It’s a slimmer version of the full Lync 2013 client and provides the same core functionality. Lync SDK is kind like a wrapper of the Lync client application. Lync tries to determine your Lync server based on your sign-in address. If you are interested in tackling a fun Lync API coded project, stay tuned. Under Logging , select the Turn on logging in Lync and Turn on Windows Event logging for Lync check boxes. . 8. C:>DHCPUtil. By default only the Lync Phone Edition, Web App, and Mobile clients will leverage real-time web-query based searches against. db. The Lync MX Client is a new client that was released in late October 2012. The python package pyncclient was scanned for known vulnerabilities and missing license, and no issues were found. Lync 2013 SDK documentation. I can find nothing that explains how to troubleshoot or even configure UCS specifically. Maybe people will refer to this client as the Lync MX client. 8 months ago extended_nc_client Version bump 0. Bias-Free Language. Hi, I need to retrive Lync client version used from different users. By Jeff Schertz Aug 31, 2014 Media. · The Lync 2010 SDK does not provide a way to add custom. Lync Online Web App. It is a subclass of pyncclient library, implementing chunked upload. I have an issue with a client. Building the documentation. Client. Softonic review. Vendor Class Identifier (option 60) – MS-UC-Client. The conversations can also be organized in tabs to keep. Works around an issue in which a Trust Model dialog box appears when a user tries to sign in to Lync. Python extended Nextcloud Client. As expected, it’s only updating two components on my Standard Edition Front-End and delivers only. When using the Lync 2010 API the LyncClient can get in the Invalid state. If you are integrating using Office Standard, you need to extract the type library and install it on the target machine. A free app for Windows, by Microsoft Corporation. This new contact object is created automatically by the New-CommonAreaPhone cmdlet. Open the Options menu on the Lync 2013 client and on the General tab set the Logging In Lync parameter to either Light or Full. Step 2 – Add Microsoft Lync References. Watch the video: Lync Contextual Data Part 2: Methods and Events. Project description. Microsoft has. 0. pync can act as a client: pync [options] dest port [s] or a server: pync -l [options] [dest] port Once a connection has been established, any data read from stdin gets sent to the. Long answer: Lync 2010: Keep noted that Lync 2010 already reached the end of the Mainstream Support as it was fully replaced by Lync 2013 (which is now replaced with Skype for Business; see below). i want to create folders in my Nextcloud for many users. example, SIP and HTTP). Cause. Microsoft is talking about its upgraded Lync unified communications platform, revealing client support for more devices, server features for better meetings and collaboration as well as. This forum is closed. If Windows gives you a security prompt, click on Yes. Resolve external DNS entries for the Lync Edge services, Lync Web services and Exchange Web Services. I don't understand how I can have one OK and the other Down. The individual steps listed here all include the optional -Verbose parameter in the screenshots for instructional purposes and can be omitted when running each cmdlet. Lync Web App is the browser-based version of Lync 2010 that allows people who don’t have a Lync account and haven’t installed the Lync client to participate in Lync meetings, using either a Windows or Macintosh operating system. It prompts on my PC to authenticate via Lync with a box labeled "Logon Information. Select the newly created Group Policy Object and select Edit to launch the Group Policy Management Editor and then browse to Computer Configuration > Policies > Windows Settings > Policy-based QoS. 6. Based on project statistics from the GitHub repository for the PyPI package pyncclient, we found that it has been starred 23 times. Xaml - there will be a PresenceIndicator control on the page - change the URI property to the URI of one of your contacts. Lync. Install the MSI package, and confirm the installation in Control Panel. Microsoft Lync shows the Presence status with more detail information about each users contacts and status such as Available, Away, Do not disturb etc. $ python -c 'import ssl;. To set up a meeting by the people you want to invite, click the People tab, click a contact or group in your Contacts list, and then, under the person or group’s name, click Schedule meeting. When you sign out, the sign-in window will appear. With this program you'll be able to put your contacts into groups and easily join video calls and conferences. Implements the client class which represents the main entry point for the API. The documentation set for this product strives to use bias-free language. Describes the scenarios in which Conversation history, contact cards, Free/Busy, and Out of Office information are unavailable when Microsoft Lync fails to connect to Microsoft Exchange. Reading the MSDN documentation is not very useful - the Invalid state is not. First release Jul 9, 2021 Stars 0 Forks 0 Watchers 0 Contributors 0 Repository size 453 KB Documentation Python client library for nextCloud This is a fork of. To revert from the status you set and have Lync automatically update your status, click the status menu and then click Reset Status. Lync. Click the Options button, click Ringtones and Sounds, click the Sounds Settings button, and then click the Sounds tab. Hi,Michael, After thr ABS server updating,it will take 0~60min randomly to update the GAL file to the client,you can change the GalDownloadInitialDelay registry key value to 0 and try to delete the GalContacts. Perform the following steps from the Lync Server Control Panel: Choose the Voice Routing menu item from the Lync Server Control Panel menu. Microsoft Lync and Skype for Business have a rich set of . In the event that the connected Windows PC is locked manually by a user or automatically by the screen. c. Verify that the UseWindowsAuth option is correctly set to Negotiate in the Lync Server’s Web Service configuration. · Hi, a) Lync client running on. 1 Update. This collection of Python jupyter notebooks are written for Python beginners who are interested in analyzing three dimensional images of cells, tissues, organoids and. No, unlike e. In the Lync main window, click the arrow next to the Options button, click File, and then click Sign Out. 416. Object moved to here. Next stop would be to check the UCMA SDK, this contains classes to set up UserEndpoint and Conversation items. Extract the file using 7Zip. Installation The following prerequisite components must be installed prior to installing Lync SDK. Represents the Lync client and provides access to conversations and contacts via their respective manager classes. 4481. uccapilog 4) Launch Lync 5) Repeat your failed test scenario 6) Exit. Documentation. Create a new chat room. exe file is a software component of Microsoft Lync by Microsoft. Does anyone know how to detect the Lync Client version from a Lync SDK/API application at. py Go to file Cannot retrieve contributors at. 201 5) This blog entry is valid for Lync 2010, Lync 2013 and Skype for Business Server. NET web application and my web page needs to provide a button to get the Lync Meeting URL just like the Outlook does: Please see the screenshot here: Lync Meeting Add. If Lync goes away while my application is running, then subsequent calls to LyncClient. Learn how to use Microsoft Lync Online Web App to join meetings, when you don’t have Lync installed. · You will have to remove the manual. This update also includes the new Skype for Business client. With the Lync Server 2013 release, various client versions can interact seamlessly in both peer-to-peer and conferencing scenarios. Short and sweet. It is now maintained by Leonidas Poulopoulos (@leopoul) and Einar Nilsen-Nygaard (@einarnn)Skype for Business, formerly Lync 2013, for Android extends the power of Lync and Skype to your favorite mobile device: voice & video over wireless, rich presence, instant messaging, conferencing, and calling features from a single, easy-to-use interface. Here's what I did: Reset the phone so it was a clean start. Embed Lync instant message or audio/video feeds directly into your own application. This is particularly useful where you want to deploy Lync in a terminal services/session host environment, and don’t want users to. It looks to support all the existing methods/APIs. net. Run the SDK installer. - View colleagues’ availability in real time and select the best way to communicate – initiating an instant message (IM), email, or a phone call. A short list of features includes : Availability of contacts is based on Microsoft Outlook calendars stored in a Microsoft Exchange Server. When attempting to call LyncClient. a. You can make these features seem like an organic part of your own application. Che uses the Lync 2010 attendant console although the issue is present in the Lync Client as well. We have clients that are having random disconnects and although it only lasts a few seconds most people are quite annoyed with this happening while they are in the middle of typing. It's awkward to test this, as Service Control Manager doesn't let you shut the service down - it's a critical service as large swathes of Windows rely on COM. Learn how to use Microsoft Lync 2013 SDK to send contextual data in a Microsoft Lync 2013 conversation when the UI Lync clients at all endpoints has been suppressed. 9319. I do know that Lync searches the 'Full Name' field in the Outlook. To do this, follow these steps. If the Lync enhanced presence privacy mode is not enabled for the Lync client that has the issue with the presence status for its contacts, follow these to confirm that the enhanced presence privacy mode is configured on the Lync Server network. Provides solutions. com Code Pull requests Actions Projects Security Insights master pyncclient/nextcloud_client/nextcloud_client. Use the Edit drop down menu to choose. 1. Color Depth 24-bit. Download. We are all going to get a new client for Lync and it is going to look a lot more like Skype. Key Features: -Initiate a group IM or video conversation and invite additional participants. Q&A for work. Improve this answer. xml" "%COMMONPROGRAMFILES (x86)%microsoft sharedOFFICE15Office Setup. A simple Python wrapper around the terminal-notifier command-line tool (version 2. When the user cannot connect to the primary registrar pool, the client will attempt to register against the back-up registrar pool within a configurable time period. Understanding Lync Modalities. When set to automatic, I can see that the SRV records are resolved correctly, but the problem seems to be with the. If you are running Windows 7, you can check to see which version you will need to download by clicking the Start button, right-clicking Computer, and then clicking Properties. Open Lync, and either find a contact in your Contacts list or type a name in the search box to find the person you’re looking for. Connect and share knowledge within a single location that is structured and easy to search. If you are running Windows XP, you will need to download the 32 bit version. Saved searches Use saved searches to filter your results more quicklyMicrosoft Lync, in its 2013 iteration, has added a bevy of features beneficial to your business’ effective unified communications. Plugged the phone into the wall for network access, plugged my PC into the phone. To set up a meeting by date, click the Calendar tab, select the date, and then in the upper-left corner, click New Event. Model. You’ll see your video in the window. "Do i need to enabled it each. typed release. GetClient (); Conversation conversation = lyncClient. Optionally, run Update-CsUserDatabase – This synchronizes data between AD and Lync backend DB (rtcab). It’s a “light” program that takes up very little space on your hard drive and is relatively quick to start. 264/MPEG-4 Part 10 Advanced Video Coding standard. · So people are calling the Cisco number for a user,. Reply. However, you could use the Lync SDK to achieve what you want by writing a small helper application (or incorporating the relevant code in your current application). RegistrarEndpoint WHERE IsServerSource = 0 group by. MSP that you created and saved in the updates folder. If this is the case, then this is by design because usually windows services are running as "SYSTEM", or "NETWORK SERVICE" or "LOCAL SERVICE" accounts, etc. OPENSSL_VERSION)' -> OpenSSL 1. ncclient: Python library for NETCONF clients. . Each of these advanced features will be discussed in a series of articles to be published over the coming months. Thank you for the prompt reply. Upgrade to Microsoft 365 today and get Microsoft Teams. Extensibility namespace contains the five classes and three enumerations that are responsible for exposing the automation feature. The lync client is running. By Jeff Schertz Mar 19, 2012 CX, LPE, Troubleshooting. Depending on how you set your VoIP call options, one of the following happens: You’ll be connected to audio or video using VoIP either by using Wi-Fi (if you. Important! Selecting a language below will dynamically change the complete page content to. I have a consulting website (on ASP. It is now maintained by Leonidas Poulopoulos (@leopoul) and Einar Nilsen-Nygaard (@einarnn)The HDX RealTime Media Engine is a plug-in to the Citrix Receiver to support clear, crisp high-definition audio-video calls, particularly with Microsoft Skype® for Business. You will see a choice called configure information. 2) - D14269. Pidgin-sipe has a very basic primitive integration with MS Lync, but it does IM, nothing else. Using the keyboard, hold the control key and right click the Lync icon, at the bottom right corner of the windows task bar. Lets UC Voice and Lync users exchange calls directly without need to traverse the PSTN.