""However, I think you are on to something here. When the system was initially set-up, the installer suggested, and I agreed, that our four lines should ring-in to both the rec and the break room, and he set it up that way.""
That would make this trunk group either a 'multi ring' or to a hunt group.
""When I learned that having multiple Ring-In always prevents forwarding to an outside line, I removed the break room from both the Day and Night Ring-In by using the Administrator phone, but I did not change any other database programming (and can not because I have neither the software nor the special cable).
Is this my problem? Is there any way to fix it without having access to the programming software and special cable?""
It doesnt matter that you turned off the other phone from ringing, the trunk group is still set up for multi ring in.
""If not, in your opinion, do you think I should be charged by the Inter-Tel local unit (who installed the system) for fixing this problem? After all, the installer did not explain the "downside" to his multiple Ring-In suggestion. (In all fairness, he said he was an installer with enough programming knowledge to get us going, but not a programmer.)""
You will be charged if someone comes out unless you can find a person that does this as a hobby. It is impossible to explain all the in's and out's of programming changes that are requested by customers.
Here is my suggestion. You really do need the programming software but since you know how to get into progamming through the Admn phone you could try moving a trunk just to test or move all the trunks into another trunk group. By default, trunk groups are set as 'single ring in' wich in turn should give you your forwarding ability. Now here are some downsides
If you have any trunk group buttons on your phones those will need to be changed. If your outgoing button is programmed to a trunk group, that will need to be changed. By default, a station list is set for outgoing access in a trunk group, if those have been altered, it will need some programming. The list goes on and on. Your better off having someone come out. This shouldnt take that long.