Filter
Top Products
Extended AT Commands Manual Page 10 of 70 2009-06-25
1.2. Terms
The following terms are used throughout this document. We have provided and explanation of
these for your reference.
Table 1-1
Term Description
<>
Field. Contents between ‘<’ and ‘>’ indicate the name of the field or the
parameter required to complete the syntax.
<del> Delimiter/Space. Insert a space.
AT command set
Communications command set interface between data terminal
equipment (DTE) and data circuit terminating equipment (DCE).
BS
Base Station. Primarily a mobile phone tower in the carrier’s domestic
public cellular phone network used as the network end point for
communicating with mobile stations. Depending upon the context, the
term may refer to a cell, a sector within a cell, an MSC, an IWF, or
other part of the cellular system.
BSC Base Station Controller.
DCE Same as MT2.
DTE Same as TE2
IWF
Inter-working Function. An IWF provides the functions needed for data
terminal equipment connected to a mobile termination to inter-work
with terminal equipment connected to the PSTN. A physical
implementation may include a pool of modems.
MO
Mobile-Originated where the SMS or the call is originated [sent] by the
Mobile Station.
Mobile Station
A cellular device [e.g. this modem or a mobile phone handset] in the
carrier’s domestic public cellular phone network intended to be used
when stationary, while in motion or during halts at unspecified points.
Mobile stations may include fixed, portable (e.g., hand-held personal
units) or vehicular units.
MSC Mobile Switching Centre
MT
Mobile-Terminated where the SMS or the call is terminated [received]
at the Mobile Station.
MT2
Mobile Termination 2An MT2 provides a non-ISDN (Rm) user interface,
e.g., CCITT V series or CCITT X series. Same at DCE. Refers to the
modem.
NVM
Non Volatile Memory. User changeable and is written at time of change
or entry to a separate section of memory unaffected by power cycles.
The setting value is available in all profiles.