Hi all.
My contract with my ISP is coming up soon, and I'm looking to switch. Obviously, I would like as little downtime as possible between connections. So I was wondering, will signing up with one ISP while still connected with another cause any complications? Will I be charged for both plans at the same time (which I'd be ok with)? Or will my old ISP automatically terminate my service, similar to porting a mobile number over?
EDIT: Sorry, forgot to mention I have NBN, not ADSL, if that makes a difference.
My understanding is that the old ISP may still bill you for the rest of the service, but the changeover can be prior.