--- title: beroNet Blog | Classic Telephony description: Classic Telephony | --- - [How to buy](https://www.beronet.com/where-to-buy/) - [beroNet Wiki](https://beronet.atlassian.net/wiki/display/PUB/beroNet+Documentation) - [Downloads](https://beronet.atlassian.net/wiki/display/PUB/Tools+and+Downloads) - English - [Deutsch](https://blog.beronet.com/de) - [Français](https://blog.beronet.com/fr) Search: [![beroNet GmbH](https://blog.beronet.com/hubfs/beroNet_August2017/Images/130920_Logo_beronet.png "beroNet GmbH")](https://www.beronet.com/) # beroNet Blog - [Home](https://blog.beronet.com) [![](https://blog.beronet.com/hubfs/images/blog/8-Steps-to-All-IP.jpg)](https://blog.beronet.com/switching-to-all-ip-in-8-steps) ## [Switching to All-IP in 8 steps](https://blog.beronet.com/switching-to-all-ip-in-8-steps) [Classic Telephony](https://blog.beronet.com/tag/classic-telephony), [Unified Communication](https://blog.beronet.com/tag/unified-communication), [Business Tips](https://blog.beronet.com/tag/business-tips) [By Christian Richter](https://blog.beronet.com/author/christian-richter) [September 18, 2017](https://blog.beronet.com/author/christian-richter) [Leave a comment](https://blog.beronet.com/switching-to-all-ip-in-8-steps#comments-listing) BT Group has announced its intention to completely shut down their ISDN network and transition to VOIP technology by 2025. Small and medium-sized companies especially dread steps toward a new... [Details](https://blog.beronet.com/switching-to-all-ip-in-8-steps) [![](https://blog.beronet.com/hubfs/Imported_Blog_Media/image2017-1-6_14-40-49.png)](https://blog.beronet.com/what-is-capi) ## [What's CAPI and what it is used for?](https://blog.beronet.com/what-is-capi) [Classic Telephony](https://blog.beronet.com/tag/classic-telephony) [By Jean-Eudes Ambroise](https://blog.beronet.com/author/jean-eudes-ambroise) [January 06, 2017](https://blog.beronet.com/author/jean-eudes-ambroise) [Leave a comment](https://blog.beronet.com/what-is-capi#comments-listing) According to the website capi.org, "**COMMON-ISDN-API (CAPI)** is an application programming interface standard used to access ISDN equipment connected to basic rate interfaces (BRI) and primary rate... [Details](https://blog.beronet.com/what-is-capi) [![](https://blog.beronet.com/hubfs/Imported_Blog_Media/150827-image-explaining.png)](https://blog.beronet.com/what-is-the-difference-between-fxo-and-fxs) ## [What is the difference between FXO and FXS](https://blog.beronet.com/what-is-the-difference-between-fxo-and-fxs) [Classic Telephony](https://blog.beronet.com/tag/classic-telephony) [By Jean-Eudes Ambroise](https://blog.beronet.com/author/jean-eudes-ambroise) [August 31, 2015](https://blog.beronet.com/author/jean-eudes-ambroise) [Leave a comment](https://blog.beronet.com/what-is-the-difference-between-fxo-and-fxs#comments-listing) When working in VoIP and telephony systems you will encounter a lot of acronyms. Even after you discover the words represented by the acronyms, it isn't always clear what they actually mean. Here are... 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