What can replace traditional fixed PSTN lines?
A.
VPN trunks
B.
modems
C.
SIP trunks
D. Internet
What can replace traditional fixed PSTN lines?
What can replace traditional fixed PSTN lines?
What can replace traditional fixed PSTN lines?
What can replace traditional fixed PSTN lines?
A.
VPN trunks
B.
modems
C.
SIP trunks
D. Internet