About 0830 today Stratmoor Hills FD called CSP Pueblo dispatcher direct on CSP 2B TG 2522 to request ETA for a trooper to a T/A on CO 83 in SW Springs. First time I've ever heard another agency on any CSP freq or TG although it's common in some parts of the state for CSP to be on other agencies freqs or TGs. CSP dispatcher seemed a little surprised. I wonder if CSP dispatch monitors any MAC TG. Inquiring minds want to know!