Rather than making phone calls over the old copper wire network, iTalk lets you to make calls through your home broadband connection. It's a cheaper way to call.
And, if you make phone calls to other iTalk users around NZ, the calls are completely free.
Important: iTalk is not a replacement for your normal phone line. It won’t work if there’s a power outage. If used to make a 111 call your location won’t be presented to emergency services. iTalk can't be used to call some premium services, incl. 0900