CDMA- Code Division Multiple Access is a competing cell
phone service technology to GSM, which is the world’s most
widely used cell phone standard. Sprint, Verizon, and Virgin
Mobile use CDMA.
GPRS- General Packet Radio Service was early technology
to enable data communication on GSM networks. It has since
been replaced by better data technologies such as EDGE and
3G. It is based on GSM and compliments SMS.
GSM- Global System for Mobile communications. Cell phones
use a cellular provider’s GSM network by searching for cellular
phone towers in the nearby area. GSM has more complete
global coverage due to roaming and international roaming
contracts. AT&T and T-Mobile use GSM.
MMS- Multimedia Messaging Service. Takes SMS text
messaging a step further by allowing for longer lengths beyond
the traditional 160-character SMS limit.
PIR- Passive Infrared. A PIR sensor does NOT detect or
measure “heat”. It detects the infrared radiation emitted from
an object to detect motion. It triggers the camera to take a
photo or video when an object passes in front of the sensor.
SIM- Subscriber Identity Module. A small card used in GSM
devices to identify your account to the cellular carrier. Users
may change SIM cards between cameras and the phone
number and data plans transfer with it.
SMS- Short Message Service. SMS is also often referred to
as texting, sending text messages or text messaging. The
service allows for short messages to be sent from one cellular
device to another cellular device or from the Internet to a
SMTP- Simple Mail Transfer Protocol is an internet standard
for electronic mail (e-mail) transmission across Internet
Protocol (IP) networks. SMTP was first defined by RFC 821
(1982, eventually declared STD 10) and last updated by RFC
5321 (2008) which includes the Extended SMTP (ESMTP)
additions and is the protocol in widespread use today.