I. Functional Overview
1. Embedded installation, 304 stainless steel body, anti-corrosion and anti-vandalism.
2. Supports SIP 2.0 protocol, RJ45 interface.
3. Hands-free calling, detects busy tone to disconnect.
4. Built-in speaker, waterproof, dustproof, and antibacterial treatment.
5. Water and dust resistance rating IP65, antibacterial structural design, flat surface for easy cleaning.
6. Supports automatic answering broadcast for incoming calls, or audio output to external active speakers.
7. Supports I/O interface for聯(lián)動(dòng) with associated devices.
8. Supports two sets of one-touch speed dial settings for direct intercom or group broadcast calls.
9. Supports querying IP address, modifying IP address, and gateway via the device keypad.

II. Operation and Usage
1. Power On/Off: Controlled by the hands-free button.
2. Answering Calls: When there is an incoming call, the phone rings. Press the hands-free button to talk or wait for automatic connection.
3. Making Calls: Press the hands-free button to power on, then dial via the keypad. Lightly touch the hands-free button to disconnect after the call.
4. One-Touch Dialing: Press the S1 or S2 button to directly dial preset numbers.

III. Main Technical Parameters
1. Communication Protocol: SIP 2.0.
2. Temperature: -20℃ to 65℃; Relative Humidity: 10% to 90%; Atmospheric Pressure: 86 to 106 Kpa; Ambient Noise ≤ 100dB(A).
3. Speaker: Built-in 2W standard speaker.
4. Keypad: 304 stainless steel 15-digit full keypad with etched characters and oil-filled surface.
5. Housing: 304 stainless steel body with integrated laser cutting process, high precision, small physical gap with buttons for better dust resistance.
6. I/O: Supports one set of dry contact information output.
7. Power: Supports PoE or DC 9V-12V 1A power supply.

IV. Packaging Dimensions
Unit Dimensions: 250x150x45mm
Outer Box Dimensions: 325*235*165mm
Packaging Material: Carton
Gross Weight: 1.7KG
Net Weight: 1.2KG
Key Product Features:
1) Supports standard SIP protocol with strong compatibility.
2) Supports optional PoE or DC 9-12V power supply.
3) 15-digit full keypad allows two sets of speed dialing in addition to normal dialing keys for one-touch direct calls.
4) Independent status indicator for quick identification of device status (standby, call, ringing, or power loss).
5) Pure 304 stainless steel panel with brushed finish consistent with button direction for enhanced aesthetics.
6) IP address announcement and quick factory reset via keypad.
7) Standard 2W built-in speaker with high volume output and adjustable call volume to adapt to ambient noise environments.