Say you grew up in omaha : with voice - over ip [ internet telephony ] you could get a local phone number in omaha that connects over the internet to ring an ip phone plugged into the wall in your house in california 假设你老家在美国奥马哈，只要透过网际网路电话，你就可以在奥马哈当地申请一个电话号码，然后透过网际网路，拨打加州家里插在墙上的网路电话。
