More often than not IP phones are referred as VoIP phones that use internet protocol, rather than the circuit-switched PSTN. IP phones are connected through an Ethernet cable to the internet where these are connected to the IP address of either VoIP provider or hosted PBX provider.

IP phone Singapore comes in a variety different shapes and operating systems. Though most of these look like traditional business phones yet some others appear like Apple or Android tablets. IP phones Singapore meant for conferencing has a speaker on top with three or more microphones whereas tele-presence IP phone is more like a miniature television studio, with one or more cameras and one or more screens of various sizes. Videoconferencing IP phones are also in use for business meetings.