Glossary
SMS Short Message Service is a service available
on most digital mobile phones to send
messages between phones or other devices.
Messages are routed a Short Message
Service Center (SMSC), which attempts to
send the message and, if unsuccessful,
possibly retry at a later time. Message delays
or message loss is possible, especially when
sending between networks. Users can
request delivery confirmation reports.
SSL Secure Sockets Layer Protocol used to
encrypt data sent over the air.
TTY Teletypewriter. An electromechanical
typewriter that either transmits or receives
messages coded in electrical signals. A
phone with TTY support is able to translate
typed characters to voice or translate voice
into characters to display on the TTY.
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