1. The system boasts strong expandability and compatibility, supporting standard SIP 2.0 (RFC3261) and related RFC protocols.

2. Supports single-button direct call to the dispatch console; the urgent call function key can be set arbitrarily.

3. Full-duplex intercom function.

4. Speaker and microphone sensitivity is adjustable; optional voice coding formats include G.729, G.723, G.711, G.722, G.726, and more.

5. The internal circuit of the telephone uses internationally standard double-sided integrated circuits, featuring accurate dialing, clear conversation, and stable operation.

6. Carbon steel surface electrostatic powder coating, high mechanical strength, strong impact resistance.

7. Our company independently produces key components such as handles, hangers, and keyboards, with strict quality control and rapid after-sales response.

Suited for environments with specific requirements for moisture resistance, fire prevention, noise reduction, dustproofing, and frost resistance, such as subway systems, pipeline tunnels, highways, power plants, gas stations, ports, steel mills, and more.

Usage Instructions:

1. Register to the server and customize the hotkey number. When in use, the caller presses the hands-free button, then presses the hotkey, and the pre-stored number is automatically dialed → the called party's phone rings

2. Party called hears ringtone → presses button to answer the call, both parties engage in normal conversation

3. After the call ends, press the hands-free button to hang up.

1. Under normal use and excluding any human damage, one-year free warranty is provided.

2. Our company manufactures the product handles, hangers, and keyboards in-house. We provide sales and service accessories at any time.

3. Unified Service Hotline: 400-118-2011.