Address the need for security in environments where background conversations must not be over heard on the telephone. With a Walker PTT handset any conversation can be conducted With out the worries of eavesdropping. PTT solutions are also recommended for environments With loud intermittent background noise. This handset (PTT500MNC1) includes a pre-installed noise canceling microphone (Noise Censor). The Walker Noise Censor reduces side tone noise up to 80%, making calls clearer for the user.

Features

• Transmitter Type: Carbon Compatible Electret (ET). The transmitter element is designed into an amplified circuit to act as a Carbon microphone With out variations
• PTT handsets do not require a hook switch in the cradle
• G-Style / 500-Style: Round Receiver & Transmitter Ends
• Connector: 4 conductor modular jack (RJ22)
• Compatible With Cortelco 2500 and 2554 series telephones
• Color – Black
• Installed Upgrades:
• Noise Censor: (NC-1) A unique noise canceling system using directional microphone housing.
• Output Level@ 1000 Hz: -26 dBV (98 dBSPL)
• Frequency Response:180 Hz to 5000 Hz (meets EIA RS-470)
• Output Impedance: 50 Ohms nominal
• Cancels Noise: up to 30 dB
• Receiver (@ 1000 Hz)
• Output Minimum (-20 dBV drive): 96 dBSPL
• Input Impedance: 150 Ohm
• Amplitude Limiting: 124 dBSPL
• Receive distortion: less than 5%
• Compatible With hearing aids