A user is trying to call a mobile phone using the number 547895341, where 5 is the pre-fix to call off-net numbers. Calls to mobile phones have worked in Past, but now the call does not work. Which three areas should you check to resolve the issue?

A.	Verify that Cisco Unified Border Element is running.
B.	Verify the search pattern.
C.	Verify the route pattern, route list and route group.
D.	Check that Cisco VCS control and Cisco VCS Express are getting through firewall.
E.	Verify that the PSTN line is connected to the Cisco Unified Communications Manager.
F.	Verify that connection to and from the Cisco Unified Border Element is good.