This is the Internet version of the user’s guide. © Print only for private use.

Protocol

In information technology, a protocol is the special set of rules that end points in a telecommunication connection use when they communicate. Protocols exist at several levels in a telecommunication connection.

RS232

A standard for serial transmission between computers and peripheral devices

SGML

A generic markup language for representing documents.

SC

Service Center (for SMS).

Service Provider

A company that provides services and subscriptions to mobile phone users.

SIM

A SIM (Subscriber Identity Module) card is a “smart card”, inserted into GSM phones, that contains your telephone account information. SIM cards can also be programmed to display custom menus for personalized services, for instance to assist operators in providing mobile commerce applications.

SMIL

Synchronized Multimedia Integration Language. Used by MMS to describe how media objects are to be played.

SMS

Short Message Service. Allows messages of up to 160 characters to be sent and received via the network operator's message center to a mobile phone.

SMTP

Simple Mail Transfer Protocol. Protocol used to send e-mail from an e-mail client via an SMTP server.

SWIM

A SWIM card is a SIM card containing a WIM.

SyncML

SyncML is a universal protocol for data synchronization, developed by the SyncML Initiative Ltd.

TCP/IP

Transmission Control Protocol/Internet Protocol. TCP/IP is the basic communication language or protocol of the Internet. It can also be used as a communications protocol in a private network (either an intranet or an extranet).

TLS

Transport Layer Security. Used by Web browsers, for example.

Terms and definitions

185