Free international calls with voipAugust 18, 2005
Keywords: voip voipbuster telephony 18866 conferencecall
The quality of the call is exceptional and always higher than what I get through my standard phone.
The reason being that traditional telephony solutions (PSTN) are often band limited, as much as 300-3400 Hz. Voip is able to utilise a wideband codec solution that uses much higher sampling rate (16kHz) and a upper band of 8kHz.
Back to the SIP protocol. Since Voipbuster supports SIP, their service can be used with any of the many, many available SIP clients (also called soft phones). Some are commercial, some are free. All offer more functionality than the Voipbuster client but not always better voice quality.
I managed to locate a free SIP client that supports conference calls between multiple SIP callers (X-pro). This means I can use Voipbuster service, call to multiple landlines in the free countries and connect them all. End result is a free call for everybody.