ISDN over IP
ISDN PRI and BRI conversion and sharing
Distributed PRI switch or converter
E1 T1 conversion
ISDN Simulation and Emulators
TDM over IP
Leased line backup eg G.704, V.35, X.21 etc
Multiplexing
Micro Cell delivery for mobile operators
High speed aggregators, inverse muxes or Terminal Adaptors
Carriers