I. Functional Overview
1. Wall-mounted installation, aluminum alloy die-cast housing with a wall thickness of not less than 5mm, offering strong vandal resistance.
2. Industrial three-proof design, waterproof and dustproof rating meets GB/T 4208-2017 IP68.
3. Supports SIP 2.0 protocol, RJ45 interface, and no less than three SIP registrations.
4. Supports full-keypad dialing or automatic dialing, with three customizable function keys.
5. Built-in 2W speaker, supports automatic call answering and broadcast activation.
6. Supports PoE or DC power supply.
7. Supports busy tone detection and call termination.
8. Supports both handset and hands-free calling modes.
9. Supports querying and modifying the local IP address.
10. Features fluorescent and backlit keypad to meet dialing needs in low-light conditions.

II. Operation and Usage
1. Call Pickup/Hangup: Controlled via the handset; picking up the handset answers the call, hanging up ends it.
2. Answering Calls: When a call comes in, the phone rings; pick up the handset to talk, and hang up after the conversation.
3. Making Calls: Pick up the handset and dial as with a standard telephone to communicate with the other party.

III. Main Technical Parameters
1. Supports connection to various types of network switches and SIP broadcast dispatch servers.
2. Temperature: -40℃ to 75℃; Relative Humidity: 10% to 95%; Atmospheric Pressure: 86 to 106 kPa; Ambient Noise: ≤100dB(A) 
3. Ringer Volume: ≥105dB with door open; ≥85dB with door closed.
4. Supports standard SIP 2.0 protocol, waterproof gland RJ45 interface.
5. PoE or DC 9V-24V 1A power supply.
6. Built-in speaker standard 2W, customizable from 2W to 5W.



IV. Packaging Dimensions
Unit Dimensions: 355*260*130 (mm)
Outer Box Dimensions: 439*277*191 (mm)
Packaging Materials: EPE foam, carton
Gross Weight: 7KG
Net Weight: 6KG