The M12 wireless WIFI SIP phone adopts an advanced industrial-grade design, meeting protection requirements such as water resistance, dust resistance, and shock resistance. It features advantages like low power consumption, long transmission distance, large number of accessible devices, and high voice quality. It is suitable for use in harsh working environments in the coal mining industry, such as high temperature, low temperature, humidity, dust, and environments with flammable and explosive gases. The M12 supports functions such as one-key intercom, one-key distress, off-network communication, and ad-hoc network communication. On the one hand, it fully meets the requirements of mine wireless communication system standards; on the other hand, it provides guarantees for daily production, dispatching, and emergency communication.

Portable handheld terminal with an attractive appearance.
Supports SIP2.0 protocol and can be registered to IP PBX.
Off-network communication function and group intercom function.
Supports high-volume hands-free function.
Supports ultra-long standby function.
Unobstructed communication distance: 300 meters.
Industrial-grade three-proof structural design, supporting water resistance, dust resistance and drop resistance.
Supports wireless WIFI access and fast switching between APs.
Machine size: 1185222(mm)
Packaging material: carton
Gross weight: 0.35KG
Net weight: 0.13KG

Power on/off method: Same as that of functional mobile phones;
Answering calls: When there is an incoming call, the phone rings, press the answer button to talk with the other party;
Making calls: Press the unlock key, then you can make a call; press the hang-up key to end the call after the conversation;
Supports access to various types of network switches and SIP broadcast dispatching servers.
Temperature: 0℃~45℃
Relative humidity: 10%~90%
Atmospheric pressure: 86~106 Kpa
Ambient noise: ≤100dB(A)
Battery: Standby time >80 hours, talk time >4 hours.
WIFI: IEEE 802.11b/g/n, fast switching between APs.
Supports DHCP automatic acquisition and static configuration of network parameters.
Can store 400 address phonebooks, and can display phone numbers in groups.