Joiwo VOIP Emergency Telephone Waterproof Telephone for Tunnel

Features


◆The system has strong compatibility and supports standard SIP 2.0 (RFC3261) and related RFC protocols;

◆Support one-button direct call dispatcher function; three function keys can be set arbitrarily;

◆Full-duplex intercom function;
◆The sensitivity of the speaker and microphone can be adjusted; optional voice coding methods such as G.729, G.723, G.711, G.722, G.726;

◆The phone case is patented, waterproof, dust proof, no need for waterproof cover, beautiful and practical;
◆The circuit inside the telephone adopts the international universal double-sided integrated circuit, which has precise number and call,

Clear, stable work and other advantages;

◆Aluminum alloy die-cast housing, high mechanical strength and strong impact resistance;

◆The surface of the outer casing is electrostatically sprayed at a high temperature, which has good antistatic property and is striking in color;

◆The key parts handles, hanging forks and keyboards are all produced by our company. The quality control is strictly controlled, and the after-sales response is fast.