Nextel iR1200 Administrator's Manual page 120

iR1200 Modem
will be delivered in the same order in which they were sent. IP acts as a postal
system, allowing you to address a package and drop it in the system, but
doesn't provide a direct link between you and the recipient. TCP/IP, on the
other hand, establishes a connection between two hosts so that they can send
messages back and forth for a period of time.
Terminal Mode
The mode that accepts AT commands. Also known as Command Mode. When
your modem is in this mode, it is waiting to receive AT commands that you
type from your communications software.
Transmission Rate
The rate at which data is transferred measured in bits per second. Common
transfer rates are 9.6bps / 19200bps / 57600bps / 115200bps
UTC
Universal Time Coordinated. Uniform atomic time system/standard that is
maintained by the US Naval Observatory. UTC defines the local solar mean
time at the Greenwich Meridian.
UTC Offset
The difference between local time and UTC (Example: UTC – EST = 5 hours).
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