The original concept of SIP trunking is being carried across to Voice over IP, so that the SIP providers can set up the companies with a cost-effective telephone connection to transfer their voice and data traffic.
With the advent of VoIP and common worldwide protocol (TCP/IO) a new era of global telephony kicked off. Since 2004 broadband internet connection enabled emergence of trustworthy VoIP services, and nowadays VoIP is being adopted worldwide due to its cost effectiveness and multiple advanced business features.