Hi

I am in the process of replacing a Toshiba phone system with a SV9100 they have two phones in the shop that have external ringers on them it looks like they are proprietary Toshiba devices that are coming out of the back of the phones

I am having a brain cramp on what I can do to possibly add some sort of loud ringer to the individual extensions possibly using a analog port

I am trying to do this by dialing there exiting individual extensions


any thoughts are greatly appreciated


Thanks

JD