Chapter 1 - Introduction
Multi-Tech Systems, Inc. CDMA Wireless AT Commands - PN S000294C 13
OTASP: Over The Air Service Programming. An automatic update in internal software parameters
PRL for example) by means of a specially defined CDMA data call that is mobile terminated
(MT).
PDU: A GSM SMS standard where any type of binary data can be transported via an SMS
message. In the CDMA system, the PDU mode will not be supported; instead, the Unicode
format message is supported.
PN Offset: Pseudorandom Noise Offset: In a CDMA network the PN offset is a variable time delay
offset of a repeating random noise generator that is used to distinguish individual sectors of
a base station.
P-REV: The CDMA revision of the mobile or base station.
PRL: Preferred Roaming List. The PRL is a collection of Frequencies, SIDs and NIDs that the call
processing software uses to search for approved and unapproved CDMA networks. The
PRL is loaded into the phone and is saved in NV-RAM.
PSTN: Public Switching Telephone Network. The traditional telephone network.
RF: Radio Frequency.
RSSI: Receive Signal Strength Indicator: This parameter represents the total RF received signal
power from the base station(s) the mobile sees.
SID: System ID. The SID is an identification number that represents geographic locations of a
common coverage area, usually a large city. Also see NID.
SMS: Short Messaging Service; A supplement service that is capable of sending and receiving
short length text messages to/from the mobile.
TA/TE: Terminal Application/Terminal Equipment. This is the end “device” (combination of hardware
and software) that communicates with a modem via a serial link. In this context, it is the
device (PDA/Computer) connected to the WISMO Quik. Also see DTE.
TON/NPI: Type Of Number/Numbering Plan Identification.
V24-V25: A data compression algorithm.
V42: A data compression algorithm.