Yes, he will be able to use both numbers if they are both connected with the phone service at the jail. Using our number is just going to be better in the long run because of the lower per-call cost.
https://www.inmateaid.com/ask-the-inmate/once-i-have-the-new-local-number-can-my-husband-still-call-me-on-the.amp#answer
Accepted Answer Date Created: July 16,2016