V.32 - An international standard for synchronous and
asynchronous transfer of data of up to 9,600 bps over dial-up telephone lines.
V.32bis - An international standard for synchronous
and asynchronous transfer of data of up to 14,400 bps over dial-up telephone lines.
V.34 - An international standard for synchronous and
asynchronous transfer of data of up to 28,800 bps over dial-up telephone lines.
V.42 - An international error correction protocol that
uses Link Access Procedure Modem (LAP-M) as the primary protocol, and MNP2-4 as back-up
protocols.
V.42bis - An international data compression protocol
that can compress data by as much as 4-to-1.
VSAT -- Very-Small-Aperture Terminal.
WAN -- Wide Area Network.