This was before the change over, before Regular Paramedics held Zoll M series, the ICP's and ECP's had the Lifepak 12's. During the filming/just after, all couple thousand or so monitors in the service were uniformly changed to Lifepak 15's. With the change over telemetry data connections were installed to all ambulances for ECG transmission and for the patient records toughbooks.
Anyway, back to the point, all paramedics can now run twelve leads and activate a STEMI call in field, not Just ICP's