Usually one would just subscribe a new number and terminate the old number that you do not want to keep.
Hope my answer has helped! If it has, please click on "This is Helpful" to give it a thumbs up. If this is the solution you seek, click on "Accept as Solution" to help others find their answers faster!
Hope my answer has helped! If it has, please click on "This is Helpful" to give it a thumbs up. If this is the solution you seek, click on "Accept as Solution" to help others find their answers faster!