Inter-working function: Difference between revisions

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{{Short description|Type of telecommunications infrastructure system}}

The '''Inter-working Function''' (IWF) contains both the hardware and software elements that provide the rate adaptation and protocol conversion between a landline destination Public Switched Telephone Network (PSTN) and the network for both data and fax services. The IWF is required as a network element to support circuit switched data.

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The '''inter-working function''' ('''IWF''') is a method for interfacing a [[wireless telecommunication]] network with the [[public switched telephone network]] (PSTN). The IWF converts the data transmitted over the air interface into a format suitable for the PSTN.<ref>{{cite web |title=IWF Interworking Function |url=https://www.mpirical.com/glossary/iwf-interworking-function |publisher=Mpirical |access-date=19 February 2023}}</ref>

IWF contains both the hardware and software elements that provide the rate adaptation and [[network protocol|protocol]] conversion between PSTN and the wireless network.

Some systems require more IWF capability than others, depending on the network which is being connected. The IWF also incorporates a "[[modem]] bank", which may be used when, for example, the [[GSM]] [[data terminal equipment]] (DTE) exchanges data with a land DTE connected via analogue modem

The IWF provides the function to enable the GSM system to interface with the various

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forms of public and private data networks currently available.

The basic features of the IWF are:

* Data rate adaption

* Protocol conversion

==References==

{{Reflist}}

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[[Category:Wireless networking]]

[[Category:Telephony]]

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