[E1] An administrator makes several security changes to the firewalls.
After you deploy Enterprise Voice, remote users report that they fail to access their voice mail by using the Call Voice Mail option in the Lync client.
You verify that the users can access their voice mail by dialing the subscriber access number.
You need to ensure that the users can access their voice mail by clicking Call Voice Mail.
Which two sets of ports should you open? (Each correct answer presents part of the solution. Choose two.)
A. TCP 443 and UDP 3478 on the internal firewall
B. TCP 443 and UDP 3478 on the external firewall
C. TCP 5062 and 8057 on the internal firewall
D. UDP 50,000 to 59,999 on the external firewall
E. TCP 5062 and 8057 on the external firewall
F. UDP 50,000 to 59,999 on the internal firewall
