It is a call which is made over internet protocol (VoIP). For example,
one can call using Google Voice to other recipient located miles away. Such
call can also be international.
SmartNode 4630 is a multiport ISDN BRI device from SmartNode VoIP family. It is available with 3 or 5 BRI/So port configurations, what is perfectly suitable for small and medium sized enterprises, looking for an inexpensive way to get connected to VoIP telephony services or to connect several remote offices in one network.