Glossary 
  AC: Alternating Current 
  APN: Access Point Name 
  DC: Direct Current 
  DHCP: Dynamic Host Control Protocol 
  DNS: Domain Name System (or Service or Server) 
  DoS: Denial of Service 
  EDGE: Enhanced Data GSM Evolution 
  ESSID: Expanded Service Set Identifier 
  Ethernet: A frame-based computer networking technology for 
local area networks (LANs) 
  GSM: Global System for Mobile Communications 
  GPRS: General Packet Radio Service 
  HSDPA: High Speed Downlink Packet Access 
  HSUPA: High Speed Uplink Packet Access 
  IP: Internet Protocol 
  LAN: Local Area Network 
  LED: Light - emitting Diode 
  MHz: Megahertz 
  MTU: Maximum Transmission Unit 
  PDP: Packet Data Protocol 
  PIN: Personal Identification Number 
  PPP: Point to Point Protoco 
  PSTN: Public Switched Telephony Network 
  PUK: PIN Unlocking Key 
  RSSI: Radio Signal Strength Indicator 
  RF: Radio Frequency 
  SIP: Session Initiated Protocol 
  UPnP: Universal Plug and Play 
   USIM: UMTS Subscriber Identification Module 
  VOIP: Voice over Internet Protocol 
  WCDMA: Wideband CDMA (Code-Division Multiple Access) 
  WEP: Wired Equivalent Privacy 
  WLAN: Wireless LAN 
  WPA-PSK: Wi-Fi Protected Access–PreShared Key