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We designed Lync for people like you. People who are on the go but want a great place to pause. It’s why we’ve created homes that look as great as they feel. And why we’ve included amenities that give you space to breathe and enjoy the day. You’ll find the best part of it all is that Lync is where you want to be—when you want. Skype for Business (formerly Microsoft Lync and Office Communicator) is an enterprise software application for instant messaging and videotelephony developed by Microsoft as part of the Microsoft Office suite. It is designed for use with the on-premises Skype for Business Server software, and a software as a service version offered as part of. Lync 2010 for Android 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. View colleagues’ availability in real time and select the best way to communicate – initiating an instant message (IM), email, or a phone call.

Note: Lync for Office 365 does not work from within the Lite version of the Outlook web interface that Jeff IT recommends for Windows XP users.

Signing into Lync

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1. If you are not automatically signed in to Lync, click on your name then click on “Sign in to IM”
2. Once signed in, your online status will be updated. You will now be able to see the status of other Lync users.

There are a few ways to find someone and send them a message.

1. Click on People to go to the Contacts page.
2. Select Directory on the left hand side of the window and start typing a name in the search field. 3. People matching that name will automatically populate the list once you hit enter.
4. Once you’ve found the person you would like to message, click the person’s name then click the “Send Instant Message” button. This opens the message window.
5. Type your message and click the send button. Note: If the message recipient is offline, they will not receive the message.

1. When receiving a message from someone, you will see a notification in the top right hand corner of your window. Choose to accept or ignore by clicking on the appropriate button. This will open the message window.

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Topic Last Modified: 2016-04-06

This section summarizes the ports and protocols used by servers, load balancers, and clients in a Lync Server deployment.

Important

Lync and Communicator clients when involved in a one to one communication, is often referred to as peer-to-peer. Technically, the two clients are communicating in a one to one conversation, with the Instant Messaging multipoint control unit (IMMCU) in the middle. The IMMCU is a component of Front End Server. Placing the IMMCU in the required communication workflow allows call detail recording and other features that the Front End Server enables. Communication is from a dynamic source port on the client to the Front End Server port TLS/TCP/5061 (assuming the use of the recommended transport layer security). By design, peer-to-peer communication (as well as multi-party IM) is possible only when Lync Server and the IMMCU is active and available.

Port and Protocol Details

Note

Windows Firewall must be running before you start the Lync Server services on a server, because that is when Lync Server opens the required ports in the firewall.

For details about firewall configuration for edge components, see Determine external A/V firewall and port requirements for Lync Server 2013.

The following table lists the ports that need to be open on each internal server role.

Required Server Ports (by Server Role)

Server role	Service name	Port	Protocol	Notes
All Servers	SQL Browser	1434	UDP	SQL Browser for the local replicated copy of the Central Management Store database.
Front End Servers	Lync Server Front-End service	5060	TCP	Optionally used by Standard Edition servers and Front End Servers for static routes to trusted services, such as remote call control servers.
Front End Servers	Lync Server Front-End service	5061	TCP (TLS)	Used by Standard Edition servers and Front End pools for all internal SIP communications between servers (MTLS), for SIP communications between Server and Client (TLS) and for SIP communications between Front End Servers and Mediation Servers (MTLS). Also used for communications with Monitoring Server.
Front End Servers	Lync Server Front-End service	444	HTTPS TCP	Used for HTTPS communication between the Focus (the Lync Server component that manages conference state) and the individual servers. This port is also used for TCP communication between Survivable Branch Appliances and Front End Servers.
Front End Servers	Lync Server Front-End service	135	DCOM and remote procedure call (RPC)	Used for DCOM based operations such as Moving Users, User Replicator Synchronization, and Address Book Synchronization.
Front End Servers	Lync Server IM Conferencing service	5062	TCP	Used for incoming SIP requests for instant messaging (IM) conferencing.
Front End Servers	Lync Server Web Conferencing service	8057	TCP (TLS)	Used to listen for Persistent Shared Object Model (PSOM) connections from client.
Front End Servers	Lync Server Web Conferencing Compatibility service	8058	TCP (TLS)	Used to listen for Persistent Shared Object Model (PSOM) connections from the Live Meeting client and previous versions of Lync Server.
Front End Servers	Lync Server Audio/Video Conferencing service	5063	TCP	Used for incoming SIP requests for audio/video (A/V) conferencing.
Front End Servers	Lync Server Audio/Video Conferencing service	57501-65535	TCP/UDP	Media port range used for video conferencing.
Front End Servers	Lync Server Web Compatibility service	80	HTTP	Used for communication from Front End Servers to the web farm FQDNs (the URLs used by IIS web components) when HTTPS is not used.
Front End Servers	Lync Server Web Compatibility service	443	HTTPS	Used for communication from Front End Servers to the web farm FQDNs (the URLs used by IIS web components).
Front End Servers	Lync Server Web Compatibility service	8080	TCP and HTTP	Used by web components for external access.
Front End Servers	Web server component	4443	HTTPS	HTTPS (from Reverse Proxy) and HTTPS Front End inter-pool communications for Autodiscover sign-in.
Front End Servers	Web server component