hello gang. i want to put a night service button on an acs but it seems like the only ext i can use is ext 10. thats not good because that ext has some issues. is it possible to put a night service button on some other extension. thanks. dave.

Nope, 10 is the only extension that can have the Night Service button - sorry

Swap phones

So...the issues. Are they with the phone itself, the wiring, the location?

it is the port. i can use it but it is flakey. it will have to be a phone for night service only, not reliable for making calls. of all the ports to have trouble with.

Have you checked the pins on the port for issues: corrosion...spiders...misaligned pins...improper wiring methodology.
Sometimes we get too focused on one part of the problem we cannot see the obvious.
Probably worn out electronics...but you never know.

I assume you plugged a known good phone from another extension directly into the port using a new line cord? That's the only way to confirm a problem with the port.

What exactly do you mean by "flakey"?

-Hal