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interworking function (IWF)

The Interworking Function (IWF) is a functional unit that is used to convert functionalities between different protocols and networks. For example, an IWF unit assigned to the mobile switching center (MSC) in GSM networks can convert protocols for GSM-specific services

into protocols in other networks. In ATM networks, the interworking function can also handle the conversion of signalling between an ISDN network and an ATM network. The functionality is two-way and includes, among other things, address adaptation and allocation of

ATM virtual connections to 64-kbit/s channels. An interworking function can also refer to the interface between a mobile radio system and a long-distance telephone network.

Usually, the function is performed by modems or Data Terminal Adapters (TA) that convert the data transmitted over radio and adapt the data formats.

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Englisch: interworking function - IWF
Updated at: 01.02.2012
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Translations: DE