Which of the following are functions that are often provided by an ITSP but are not typically provid

seenagape

10 years ago

Which of the following are functions that are often provided by an ITSP but are not typically
provided by the PSTN? (Select 2 choices.)

A.
QoS

B.
call setup and teardown

C.
call routing

D.
call supervision

E.
audio signal compression