Topic Last Modified: 2010-10-12

The following table describes the ports that are used by call management features. These ports are default settings that you can change by using the Set-CsApplicationServer cmdlet. For more details about this cmdlet, see the Lync Server Management Shell documentation.

Ports used by call management features

Call management feature Port number Description

Call Park

5075

Used for SIP listening requests

Announcements

5071

Used for SIP listening requests

Response Group

5071

Used for SIP listening requests

8404

Used for interserver communications

Note:
This port is used for the Match Making service and is required when the Response Group application is deployed in a pool that has more than one Front End Server.