VoIP heavy-duty weatherproof telephones are IP-based mining telephone which are fully contained in an composite weatherproof housing, offering increased resistance to vandalism, and ensure that the primary function of communications is maintained at all times, resulting in high reliability of the product long MTBF, perfect idea for underground mine tunnels, power plants, petrochemical plants, mining, marine... areas.
VoIP heavy duty telephone is easy to program (configuration and firmware upgrades through Web GUI) and has a non-volatile memory to ensure stored settings and numbers are not lost when power is cut down. Available for many applications. the VoIP telephones are a versatile reliable product for security and emergency voice communications.
The VoIP heavy duty phone they Powered by PoE (Power over Ethernet) or external power supply, support SIP v1 (RFC2543), v2 (RFC3261).