I. Functional Overview
1. Wall-mounted installation, made from SMC material through forging and molding, with a spray-coated surface. Customizable color and aesthetically pleasing appearance.
2. Supports SIP 2.0 protocol, capable of registering up to 3 SIP accounts.
3. Hands-free dialing, supports no less than two sets of one-touch speed dialing. Features automatic call answering and busy tone detection for call termination.
4. Built-in 2W speaker and AEC algorithm, supports audio output interface.
5. Integrated shell molding with waterproof, dustproof, vandal-resistant, and anti-corrosion design.
6. Built-in 15-50W amplifier circuit, compatible with external 15-50W horn speakers.
7. When used with a SIP broadcast dispatch server, enables group call, team call, recording, and other functions.

II. Operation and Usage
1. Power On/Off: Controlled via the hands-free button.
2. Answering Calls: When there is an incoming call, the phone rings. Press the hands-free button to communicate with the caller or wait for automatic connection.
3. Making Calls: Press the hands-free button to dial. Lightly tap the button to end the call after conversation.
4. Broadcast Announcement: Set the number of auto-answer rings via the WEB interface. Upon detecting the corresponding ring, it triggers the broadcast announcement.

III. Main Technical Parameters
1. Supports connection to various types of network switches and SIP broadcast dispatch servers.
2. Temperature: -35℃~75℃; Relative Humidity: 10%~90%; Atmospheric Pressure: 86~106 Kpa; Ambient Noise: ≤100dB(A) 
3. Power Supply: DC9-24V/1A or POE
4. Amplifier: Built-in 15-50W amplifier circuit, external 15-50W horn speaker.
5. Protection: Shell protection rating IP65, impact resistance rating IK10.
6. Call Distance: ≧90CM

IV. Packaging Dimensions
Unit Dimensions: 300*180*90mm
Packaging Material: Carton
Gross Weight: 8KG
Net Weight: 7KG