DP-SW20 User Manual
Appendix
90
© 2008 Pirelli Broadband Solutions S.p.A. All Rights Reserved.
T
ERM
D
ESCRIPTION
Roaming
Roaming allows a cellular telephone users to make telephone
calls and send and receive data, in addition to other services,
even if the user is found outside of their area of network
coverage as defined in their user contract, by using the network
that located. Use of the telephone outside of the country
depends on the network operator‟s number of roaming
contracts and on the characteristics of the telephone.
SAR
Indicates the amount of frequency energy absorbed by human
tissue through the transmission of radio waves. The admissible
level differs by country.
SIM card
This removable card is a chip located inside a GSM telephone
that contains information such as the user‟s telephone number,
the list of telephone numbers and other information related to
the owner of the telephone.
SIP
The real-time communication protocol for VoIP.
SMS
(Short Message Service) This text messaging service is used in
the majority of mobile telephone systems.
USB
A device that allows the telephone to interface with a PC
through a PC-tool.
Voicemail
Calls are transferred to Voicemail if the user cannot be reached
or if the telephone is turned off. The telephone informs the
users if they have received a message.
VoIP
VoIP is a group of technologies that compressed the voice,
enters it into “packages” and then transmits it via internet.
WAP
The Wireless Application Protocol is a protocol that helps to
create internet applications that can be used by special cellular
telephones.
WLAN
A network that allows various users located in the same building
with intranet access to connect with each other. Normally
operates below the 802.11 Norm. The sog.Hub hardware
component operates like a common connection interface,
making it possible to transmit data located inside the data
processing network to others.
802.11
Standard for mobile telephone communication that uses the
frequency spectrum of 2.4GHz and allows for high-speed
transmission up to 54Mbps.