How will my nbn connection affect my phone service? One of the biggest changes you will experience with an NBN connection is that telephone services are now provided through a modem, known as a Voice Over Internet Protocol (VOIP) service. This means that you will plug your telephone handset into the VOIP part of your modem to receive and make calls.Do i have to move to the nbn to get it? Some homes and businesses get their internet and phone services from companies using networks that compete with the NBN. If you’re with one of these companies, you don’t have to move to the NBN and your services won’t be disconnected. Check with your provider if you need to move.How do i know if my area is ready for nbn? NBN Co will let you know by direct mail your region’s ‘ready for service’ date. Once NBN has announced your area is ready for service you will generally have 18 months to move your landline phone and internet services to the new NBN network, although some service providers might have shorter timeframes.