LED

　　light-emitting diode

　　mass storage mode

　　Mass storage mode enables users to transfer files between a media card and their computer when they connect their BlackBerry device to their computer.

　　MCC

　　mobile country code

　　MMS

　　Multimedia Messaging Service

　　MNC

　　mobile network code

　　MTP

　　Media Transfer Protocol

　　OCSP

　　Online Certificate Status Protocol

　　OCSP server

　　A BlackBerry? device uses an OCSP server to check the revocation status of a certificate on demand.

　　PEAP

　　Protected Extensible Authentication Protocol

　　personal certificate

　　A personal certificate is a certificate that a certificate authority assigns to a user.

　　personal PGP key

　　A personal PGP? key is made up of a PGP public key and PGP private key for a user.

　　PIN

　　personal identification number

　　private key

　　A private key is a key that only the certificate subject can use. Private key information is not distributed publically. BlackBerry devices use private keys to sign email messages or PIN messages that users send and to decrypt email messages that users receive.

　　public key

　　A public key is a key that people other than the certificate subject can use. BlackBerry devices use public keys to encrypt email messages or PIN messages that users send to certificate subjects and to verify the signature on email messages or PIN messages that users receive from certificate subjects.

　　root certificate

　　A root certificate is a self-signed certificate and usually belongs to a certificate authority.

　　RTSP

　　Real Time Streaming Protocol

　　SAN

　　subject alternative name

　　SDN

　　A service dialing number (SDN) is a number that is preloaded on your SIM card by your wireless service provider that you can use to access information about your BlackBerry device service， such as the current call forwarding status.

　　SHA

　　Secure Hash Algorithm

　　SIM

　　Subscriber Identity Module

　　S/MIME

　　Secure Multipurpose Internet Mail Extensions

　　SMS

　　Short Message Service

　　SMSC

　　Short Message Service Center

　　SSID

　　service set identifier

　　SSL

　　Secure Sockets Layer

　　TCP

　　Transmission Control Protocol

　　TLS

　　Transport Layer Security

　　Triple DES

　　Triple Data Encryption Standard

　　TTY

　　teletype

　　VPN

　　virtual private network

　　WAN

　　wide area network

　　WAP

　　Wireless Application Protocol

　　WEP

　　Wired Equivalent Privacy

　　WML

　　Wireless Markup Language

　　WPA

　　Wi-Fi Protected Access

　　WTLS

　　Wireless Transport Layer Security