Async. modem glossary
data compression
MNP3, 4 protocol optimization (108-120%)
MNP5, V42bis true compression, (up to 400%, depends on data)
compression fallback
V.42bis --> MNP5 --> none
DTE Data Terminal Equipment (computer)
DCE Data Communication Equipment (modem)
DTE-DCE signalling
DTR Data Terminal Ready, set by DTE
DSR Data Set Ready, set by modem
RTS, CTS Reday To Send, Clear To Send, used to hanshake on sped
buffering
CD Carrier Detect, set by modem when communication to remote modem
is established