A small company would like to minimize the number of analog lines that they use to connect to the
PSTN. They are considering a single FXO circuit. Which issue will they encounter if they deploy
this solution?
A.
They won’t be able to support DID and will require a mechanism to handle inbound calls, like
PLAR to an operator line.
B.
They will be able to support both inbound and outbound calls without any issues.
C.
They will need an additional FXS-DID circuit to support inbound ANI.
D.
They will need an FXS port for inbound calls to carry ANI.