Which network path will the call signaling take when client A calls client B?

Client A in X site uses an IP phone to call client B in Y site. Engineers have selected SCCP as the default VoIP signaling protocol.

Which network path will the call signaling take when client A calls client B?
A . IP phone X > CUCM subscriber > IP phone Y using TCP port 1000
B . IP phone X > CUCM subscriber > IP phone Y using TCP port 2000
C . IP phone X > CUCM subscriber > IP phone Y using UDP port 1000
D . IP phone X > IP phone Y using TCP port 2000
E . IP phone X > IP phone Y using TCP port 1000

View Answer

Answer: B