You deploy a Lync Server 2013 infrastructure that contains an Edge Server named Serverl. Serverl is configured as shown in the following table.
You plan to configure federation with your company’s external partners.
You need to identify which ports must be allowed on the firewall to provide the instant messaging (IM), presence, and web conferencing features.
Which ports should you identify?
To answer, drag the appropriate ports to the correct location in the answer area. Each port may be used once, more than once, or not at all. Additionally, you may
need to drag the split bar between panes or scroll to view content.
Select and Place:
Answer: 
Explanation:
Sip.contoso.com:
Box 1: 443
Box 2: 3478
Wc.contoso.com
Box 3: 443
Note:
* The UDP 3478 and TCP 443 ports are used by clients to request service from the A/V Edge
service.
* 3478 outbound is used to determine the version of Edge Server that Lync Server is
communicating with and also for media traffic from Edge Server to Edge Server. Required for
federation with Lync Server, Windows Live Messenger, and Office Communications Server, and
also if multiple Edge pools are
deployed within a company.
* The A/V Edge requirements for ports and protocol have changed in Microsoft Lync Server.
Depending upon your requirements for federation with partner infrastructures and the
configuration of your Edge Servers, the following ports should be considered:
UDP 3478
TCP 443
UDP 50,000–59,999
TCP 50,000–59,999