Nokia WAP and SMS gateway - Manual (Page 115)

Glossary
M
MO
Mobile Originated - a SMS from mobile to application
MT
Mobile Terminated - a SMS from application to mobile
MWI
Message Waiting Indicator (See [BIBLIO-3GPP-23038])
MClass
Message Class (See [BIBLIO-3GPP-23038])
Coding
Message Coding (See [BIBLIO-3GPP-23038])
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