Sam -
One other question - one of the lamp feeds goes to "3". Wouldn't using this terminal for A or A1 cause an issue?
One other thing; I have a Melco C-12 for intercom use. One of the leads is labeled as being grounded when off hook. I'm assuming this is only the case if one of the keysets is off hook, not for SLT's... regardless I can't get a ground reading in either case. Just thought I'd throw this out there in the event it could be used to determine off hook.
Thanks -
Matt
