A SIP trunk is a method for connecting calls to and from your business by using the SIP standard.
The SIP trunk is a connection – across the Internet – between your own telephony software or equipment – and the SIP trunk provider’s equipment – which is onward connected to the traditional telephone network.
This gives you the ability to make and receive calls from the traditional telephone network, without the need to have a direct physical connection to the traditional telephone network yourself.
By using a SIP trunk , you get the ability to receive calls via local phone numbers anywhere on the planet – independent of the location of your team. Incoming calls to your local phone numbers are connected to your business across the Internet.
Call mobiles and landlines
You also get the ability to make outbound calls to mobiles and landlines worldwide.