If you pick a JMP number, you can port your JMP to a cell service, and a cell number can be ported to JMP.
I believe, but I may be wrong, that cell/mobile companies get a different batch of numbers from VoIP companies, so if you port a cell number to JMP, it will likely still be believed to be a cell number, but I can’t say 100% concerete for sure.
If you pick a JMP number, you can port your JMP to a cell service, and a cell number can be ported to JMP.
I believe, but I may be wrong, that cell/mobile companies get a different batch of numbers from VoIP companies, so if you port a cell number to JMP, it will likely still be believed to be a cell number, but I can’t say 100% concerete for sure.