SIP Trunking is a method for businesses to obtain phone service from an ITSP (Internet Telephony Service Provider) using their internet connection. Customers sign up with their chosen provider (or ITSP) through their website and select the capacity and options they want. Customers simply insert their account credentials into their phone system in order to connect them to their new service, perform some basic Phone System configuration, and begin making/receiving phone calls, over the internet.
SIP Trunking differs from the traditional telephony service that is provided by the PSTN (Public Switched Telephony Service) because there is no dedicated phone line from the provider to your business.
Wow! This also translate to up to 60% or more of monthly cost savings, over traditional PSTN service.