| Title
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Break-in or priority override
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By meter
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By shielding
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By signal quality (e.g., noise)
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By signal quality (e.g., signal to noise ratio)
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By signal strength
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By simultaneous control with signal selection
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Cabinet, housing, or chassis structure
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Call alerting
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Call conferencing
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Call diversion
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Call routing (e.g., to prevent backhaul, routing efficiency, least cost, or alternate routing)
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Caller identification
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Card control element
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Carrier amplitude control (e.g., voice operated on/off)
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Carrier and sidebands separately transmitted
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Carrier and single sideband
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Carrier frequency stabilization
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CARRIER WAVE REPEATER OR RELAY SYSTEM (I.E., RETRANSMISSION OF SAME INFORMATION)
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Cell projection
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Central station (e.g., master, etc.)
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Channel allocation
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Channel index indication
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Channel or station selection
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Channel seizing
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Channel selection or allocation
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Co-located systems
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Combined with band selection
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Combined with diverse art device
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Combined with diverse art device (e.g., audio/sound or entertainment system)
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Combined with noise or interference elimination
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Combined with other control
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Combined with other control (e.g., bandwidth, volume, gain, etc.)
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Combined with other function
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Common antenna
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Common frequency
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Constant or controlled input impedance
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Control channel monitoring (i.e., paging or access channel signaling) for system access
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Control channel/voice channel conversion
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Control of another apparatus
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Control or access channel scanning
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Convertible (e.g., to diverse art device)
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Convertible to different type (e.g., AM to FM)
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Cordless/corded conversion
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Coupling or decoupling between stages
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Crystal or electron tube diode
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Delayed
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Detachable for portability
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Diagnostic testing, malfunction indication, or electrical condition measurement
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Difference frequency
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