GSM Telephone Circuit Board For Industrial

This VoIP Telephone Circuit is ideal for railway applications, tunnels, highways, marine applications, underground mining, retail banking, clean rooms, firefighter, taxi, industrial, prisons, parking-lots, power stations, chemical plants, etc.

Main Features of GSM Telephone Circuit Board    

• – High-definition voice quality
• – Full duplex speakerphone
• – Hands free and/or handset
• – External Antenna with long cable
• – Support message function for low battery & low signal strength
• – 12~24V DC power supply
• – Connection for external LED beacon
• – Extreme operating temperature
• – LCD display optional
• – Customized features and customer Logo for bulk orders
• – CE, FCC, RoHS compatible