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

seenagape

8 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