I. Function Overview
1. Wall-mounted installation, aesthetically pleasing appearance, aluminum alloy body.
2. Supports SIP 2.0 protocol, capable of registering 3 SIP accounts.
3. Supports two groups of hands-free one-touch direct intercom.
4. Can be set for automatic call answering and busy tone detection for call termination.
5. Supports AEC echo cancellation algorithm and environmental noise filtering technology.
6. Supports audio output interface, can connect to external active speakers.
7. Supports POE or DC power supply.

II. Operation and Usage
1. Power On/Off: The power on/off is 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 other party, or wait for automatic connection;
3. Making Calls: Press the hands-free button to make a call. After the call, lightly tap the button to end the call;

III. Main Technical Parameters
1. Supports connection to various types of network switches and SIP integrated communication systems.
2. Temperature: -20℃~65℃ Relative Humidity: 10%~90% Atmospheric Pressure: 86~106 Kpa Environmental Noise: ≤100dB(A) 
3. Power Supply: 9V-24V/1A DC or POE
4. Full-Duplex Echo Cancellation (AEC) – Hands-free mode, up to 96ms echo delay cancellation.
5. Call Distance: Effective call distance in a noise environment not exceeding 70dB is no less than 90cm.

IV. Packaging Dimensions
Unit Dimensions: 190*110.5*38mm
Outer Box Dimensions: 325*145*70mm
Packaging Material: Carton
Gross Weight: 1.1KG
Net Weight: 0.70KG