Novatel Wireless NRM-MC950D Manual Do Utilizador

Glossary

Personal Identity Number. A code that is linked to your SIM card for 
security. This four digit code gives you access to the SIM card and 
allows you to access your operator's network.

Pin Unlock Code. PUK is the code required to unlock a GSM SIM card 
that has disabled itself after an incorrect PIN code was entered three 
times in a row. If an incorrect PUK code is entered 510 times, the SIM 
card will permanently block (disable) itself.

A firewall mechanism that replaces the IP address of a host on the 
internal (protected) network with its own IP address for all traffic passing 
through it.

Short Messaging Service. Short text messages of no more than 160 
characters sent and received by broadband devices.

Transmission Control Protocol/Internet Protocol. A protocol for 
communicating over the Internet.

Virtual Private Network. A way to communicate through a dedicated 
server securely to a corporate network over the Internet.

Wide Area Network. A network which uses common carrier provided 
lines. Contrasts with LAN.

Wide band Code Division Multiple Access. Based on the GSM 
technology evolution roadmap, WCDMA supports upload and download 
speeds up to 384kbps. WCDMA is also referred to as UMTS.

Wireless Wide Area Network. A communications technology that utilizes 
digital mobile phone systems to access data from any location in the 
range of a cell tower that is connected to a data enabled network.

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