Houston’s public transportation system uses strategically placed Ritron callboxes in its bus parking lots to allow drivers instant access to maintenance repair crews. The system has made the vehicle inspection and mechanical issue reporting process much more efficient. Vehicle down-time and schedule changes have been reduced, while driver morale has increased. Battery powered operation and wireless technology made installation simple, low-cost while providing maximum flexibility in actual placement of the callboxes. Radio compatibility with Houston METRO’s existing UHF repeater system made integration easy, seamless and cost-effective.