Thanks for the advice. The 70volt system did seem like a good fit for our environment. Some of our cable runs may be rather long. Speaker volume will most likely be fixed, as we don't need anyone turning it down so that pages will not be heard. Six speakers is just a guestimate at this time and we do want the capability to expand in the future.
Do you happen to know which manual I could find the interface information in? The FXII has the RJ45 jack for connection to the external hardware, but I have not been able to locate the pinouts for it.


Comdial FXII/96 Vers 17E