Thank you for getting in touch with your account query. Kippies has already given some pretty good info, but I'd like to clarify a couple of things.
If you wish to continue with the existing equipment and the existing package/contract, you can complete a Transfer of Responsibility. This would just move the current services into your wife's name with no downtime or change in services.
However, if your wife wants to sign up as a new customer, you would need to schedule in a disconnection for your existing services and start from scratch. To be eligible for new customer deals, your wife must create a new account and can't have had any services in her name at the same property within the past three months.
If you decided to go ahead with this, you would need to give the standard 30 days notice for disconnection with our retentions team, then your wife could book in a QuickStart order for the next day. You should have less than 24 hours without service in your home.
I'm wanting to do a similar thing, changing my account to my wife as the primary account holder. I have completed the transfer forms, but would like to understand if the current plan we're on will remain the same, and it also says she will need to go on to a minimum term contract, but unsure how long that would be.