Direct answer
The answer depends on the exact system, voltage, scope, building type, penetrations, fire-rated assemblies, and authority having jurisdiction. Arizona contractor classifications distinguish low-voltage communications work from line-voltage electrical and drywall scopes; alarm work can also involve separate BTR credentials. A permit exemption for one type of low-voltage landscape work does not exempt every network, security, AV, or control project.
Before work, identify the property jurisdiction and have the contractor confirm the applicable license classification and permit path in writing. Verify the active license against the scope through the Arizona Registrar of Contractors, and check current requirements with Phoenix, Scottsdale, or the relevant local authority.
Sources and technical references
Use the organizations responsible for a product, platform or standard to confirm current specifications and compatibility.
How this answer was prepared
Camelback Smart Homes publishes this FAQ library for homeowners, design professionals, builders and property teams comparing integrated technology. Answers begin with the practical conclusion, then explain the factors that can change it.
Limitations: This is general educational information, not a site-specific design, quote, code determination or compatibility guarantee. Final requirements depend on the property, construction, infrastructure, equipment versions and project goals.