Which four types of high-density trunk can be used to connect to an ITSP? (Choose four.)
A.
T1/E1 CAS
B.
FXS
C.
T1/E1 PRI
D.
E&M
E.
SIP
F.
H.323
Which four types of high-density trunk can be used to connect to an ITSP?
Which four types of high-density trunk can be used to connect to an ITSP? (Choose four.)