I. Function Overview
1. Wall-mounted installation, aesthetically pleasing appearance, integrated aluminum alloy casing, waterproof, dustproof, and vandal-resistant.
2. Supports SIP 2.0 protocol, capable of registering two SIP accounts.
3. Supports automatic call answering and broadcast activation, with configurable prelude reminder tones and playback count. Automatically enters low-power standby after broadcast completion.
4. Supports optional AC or DC power supply, built-in power module, no exposed power supply or external power junction box required.
5. Supports built-in 50W SIP protocol audio decoding power amplifier circuit, standard 30W broadcast output.
6. Supports local scheduled broadcasts, triggered linkage broadcasts, and remote telephone call broadcasts.
7. Supports 1 short-circuit input/output interface (built-in relay, requires customization).
8. Supports reverse power input protection and self-testing.
9. Supports adjustable amplifier output volume, customizable based on the environment.

II. Main Technical Parameters
1. Supports integration with various types of IP PBX and SIP broadcast dispatch servers.
2. Temperature: -30°C to 70°C; Relative Humidity: 10% to 95%; Atmospheric Pressure: 86–106 kPa; Ambient Noise: ≤100 dB(A) 
3. 1 RJ45 interface: Industrial-grade waterproof RJ45 connector; 1 telephone interface; supports AC or DC input.
4. Supports standard SIP 2.0 (RFC3261) and related RFCs.
5. Outdoor waterproof and dustproof IP65 standard.
6. Standard installation bracket included.
7. Standby power consumption: 2W; Standard operating power consumption: 35W.
8. Output sound ≥120 dB; Dimensions: 28 × 18.5 × 57.5 mm; Weight: 6.75 kg