Swyx develops and markets an intelligent IP-based telephony software solution. Swyx was founded in 1999 and is headquartered in Dortmund, Germany. The company's stated goal is to complement or completely replace traditional PBXs with a software based IP telephony solution.

Swyx's telephony solution SwyxWare consists of four components: SwyxServer, SwyxGate, SwyxIt! and SwyxPhone. SwyxWare offers all features - such as voicemail, Least Cost Routing and extensive journal functions - previously available only through large and expensive PBXs.

Additional features such as Call Routing Manager, personalised user interface (skin) and CTI go far beyond the call handling capabilities of traditional PBXs. Swyx products are marketed solely through a network of authorised dealers. The Swyx partnership concept currently embraces more than 800 companies worldwide.