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Used for incoming SIP requests from the PSTN gateway to the Mediation Server. Used by the Mediation Server for incoming requests from the Front End Server to the Mediation Server.
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Used for incoming SIP requests for Attendant (dial in conferencing).įront End Servers that also run a Collocated Mediation Server Used for incoming SIP requests for dial-in conferencing. Lync Server Conferencing Attendant service (dial-in conferencing) SIP port used by Mobility Services internal processes HTTPS (from Reverse Proxy) and HTTPS Front End inter-pool communications for Autodiscover sign-in. Used by web components for external access. Used for communication from Front End Servers to the web farm FQDNs (the URLs used by IIS web components). Used for communication from Front End Servers to the web farm FQDNs (the URLs used by IIS web components) when HTTPS is not used. Media port range used for video conferencing. Used for incoming SIP requests for audio/video (A/V) conferencing. Lync Server Audio/Video Conferencing service Used to listen for Persistent Shared Object Model (PSOM) connections from the Live Meeting client and previous versions of Lync Server. Lync Server Web Conferencing Compatibility service Used to listen for Persistent Shared Object Model (PSOM) connections from client. Used for incoming SIP requests for instant messaging (IM) conferencing. Used for DCOM based operations such as Moving Users, User Replicator Synchronization, and Address Book Synchronization. This port is also used for TCP communication between Survivable Branch Appliances and Front End Servers. Used for HTTPS communication between the Focus (the Lync Server component that manages conference state) and the individual servers. Also used for communications with Monitoring Server. 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). Optionally used by Standard Edition servers and Front End Servers for static routes to trusted services, such as remote call control servers. SQL Browser for the local replicated copy of the Central Management Store database. Required Server Ports (by Server Role) Server role The following table lists the ports that need to be open on each internal server role.
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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.įor details about firewall configuration for edge components, see Determine external A/V firewall and port requirements for Lync Server 2013.