An organization is setting up integration of its CUCM cluster to a newly deployed VCS cluster. The requirement is to allow the CUCM registered endpoints to be able to call VCS registered video endpoints and send a call from IP phone to VCS whenever an IP phone dials any number with the prefix 555 followed by an extension. Which CUCM construct must be configured to fulfill this req?

A.	SIP Route Pattern
B.	Local Route Group
C.	Translation Pattern
D.	SIP Dial Rules
E.	Route Pattern