I found another TTC CIS voice channel on 423.3625. I heard the St. Clair streetcar on it.
Queensway busses are often on 423.7375 which I believe is the Shipp Center at Islington & Bloor (used to be on 423.6625). This my local transmitter.I notice we also have no CIS for:
Lakeshore, Leslie, Mount Dennis, Queensway, Roncesvalles, Russell .
Be nice to find them before the system becomes TETRA.