Once your Nextiva phones are setup to your liking you'll want to set up a forward with your current carrier – so that your numbers will route to your Nextiva phones before the porting completes.
Can you contact my current carrier and forward my telephone numbers for me?
No. Nextiva is not authorized to add or make changes to your account with your current carrier. Please contact your current carrier to set up a forward to your temporary Nextiva numbers.