You can make an ATA dial a specific number, but you'd lose the direct-dial from the PSAP to the firehouse, unless you set something up to facilitate that. More equipment, more opportunities for things to fail; POTS lines magically still work when internet backbones take hits. The potential risk may not fly too well with EMS system. You're better off leaving it alone as John recommended

Last edited by JBean3329; 11/23/16 02:08 PM.

Sometimes the thoughts in my head get so bored, they go for a stroll through my mouth. This is rarely a good thing.