I have a question about the "Motorola Tone Remote Control", (i.e.) 2175 hz + 1950 hz + 2175 hz(low level gaurd tone)

Protocol used in Motorola base stations and repeaters. 

I am wondering if anyone has written a channel driver for it?

If not then I can look into it.  I am thinking the remote base code could be modified. That would give us the ability to control XTL5000 and Astro Spectra base stations in 4 wire mode.

It's easy to connect a base station through ACC port 2 for audio and ptt but there is no provision there for channel selection.

TRC would give us 8 channels selectable

Eventually maybe a DRC (digital remote control) channel driver could be written too.

I am not really the best programmer in the world, but I do know how to manage and run a development team.

The TRC is fairly straight forward.

The DRC will take some work but could be done.

Any thoughts?