Jargon Buster:
VOIP is an acronym for
Voice Over IP, or
in more common terms it simply means "phone service over the
Internet."
Internet telephony products are sometimes
called IP
telephony, Voice
over the Internet (VOI) or Voice Over IP (VOIP)
products.
VOIP is the transmission of voice
over packet-switched
networks. If you are not familiar with the term
"packet switched networks", then all you need to know is that
packet-switched networks carry all our data around, between
computers both within company networks and also throughout
the internet. Traditionally telephone systems (telephony
systems) which predate the invention of packet-switched
networks use different systems.
VOIP is also called
VoIP lines or
trunks.