Which ports should you identify?

The Security Department implements a new Firewall between
the IP-PBX system and the Servers in the Tampa Office.
You discover that SIP Sessions cannot be established between the IP-PBX and EX1.
You need to identify which Ports must be opened between
the IP-PBX and the Exchange Server 2013 Servers.
Which ports should you identify?

Answer:

Explanation:

CLIENT ACCESS SERVER: TCP 5060
MAILBOX SERVERS: TCP 5065
TCP 5067
UDP 1024 TO 6553
Note:
You can configure the TCP port that’s used to listen for Session Initiation Protocol (SIP)
requests on a Unified Messaging (UM) IP gateway. Bydefault, when you create a UM IP gateway,
the TCP SIP listening port number is set to 5060.
The Microsoft Exchange Unified Messaging service and the UM worker process use multiple Transmission
Control Protocol (TCP)
and User Datagram Protocol (UDP) service ports to communicate with IP gateways.
The Microsoft Exchange Unified Messaging service and the UM worker process use Session Initiation Protocol
(SIP) over TCP.
By default, the Microsoft Exchange Unified Messaging service listens on both TCP port 5060 in Unsecured
mode
and TCP port 5061 when mutual Transport Layer Security (mutual TLS) is used.
Each UM worker process that’s created listens on port 5065 and 5067 (unsecured) and 5066 and 5068
(secured).
But when an IP gateway or IP PBX sends Realtime Transport Protocol (RTP) traffic to the Speech Engine
service
worker process, the IP gateway or IP PBX will use avalid UDP port that ranges from 1024 through 65535.
Reference:
Exchange 2013, Configure the Listening Port
Reference:
http://technet.microsoft.com/en-us/library/jj150516(v=exchg.150).aspx#ports