Not much to add past what
@nhbbear @Protectandserve and others have contributed.
Two points about the call response:
1) Dispatching is one of the most underappreciated, underestimated (in terms of skill required,) and under paid positions in LE. And that's why it's a hard position to fill. A lot of places have shared or countywide dispatch now to keep costs down and positions filled. Theoretically this makes for better dispatching... but not always. If I'm screaming for help on my handheld and get no response from dispatch, get to my car and get "Are you okay?" as a response to "I'm shot somewhere in my neck" and/or "My arms are broken," some body gots to go.
2) The lack of chatter over the radio is a good thing. Once location, situation and suspect description is out, everyone is assumed to be going. No need to say so. The response time is unfortunately typical of many rural areas. Where I work, my backup is rarely more than two minutes out. A minute-and-a-half maybe on a midnight shift but taking the wrong street on a summer weekend and it could add three even with lights and sirens. When I talk with NYPD guys, they get salivating when I tell them about the cost of living vs base salary here. Then I tell them about how we ride one man to a car mostly and they immediately switch off. Can't say I blame them.