The range of needs and solutions, both technical and non-technical, is vast, and likely to increase with statewide networks and mutual aid agreements. Your first priority is to define the scope of your interoperability:
- Which outside entities does your system need to connect to?
- How often will these connections be required?
- Should they be permanent connections or activated manually?
- What, or who, triggers their activation?
In some cases, public safety agencies simply rely on caches of equipment for emergencies. On the other end of the spectrum, some require totally seamless, automatic roaming with their neighbors, and opt for ISSI (Inter Sub-System Interface).
Consider also your interoperability with non-LMR voice systems (e.g., LTE). This is the right time to consider your current – and future – connections to PSTN, cellular systems, private and public wireline and internet, alarm systems, etc.
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