USB phone

In 2005 XS4ALL Internet BV (the first public internet provider in the Netherlands) supplied all of its DSL users with a USB VOIP Phone, it the idea of Donar Alofs and built by Philips.

It came with a browser plugin and people could make and receive calls via this USB Phone via an internet website (webphone.xs4all.nl).

Later on, people got DSL modems with RJ-11 VoIP ports and RJ-45 ISDN ports, later the DSL modem/routers were also built-in DECT[clarification needed] for making calls with traditional phones.

In 2009, Polycom introduced the CX300 USB phone, optimized for Microsoft Office Communications Server 2007 R2.

It is also supported with Skype for Business online which makes it a possible endpoint to use with Office 365 Cloud PBX when connected to a PC running the Skype for Business client.