• Offer the lastest in integrated circuit design, provide
the industry standard packed with popular features.
• Talk/Ring/Monitor three kind of tests function, its switch
located on inside of handgrip.
• Switchable tone or pulse dialing. TONE/PULSE switch
are located on inside of handgrip.
• The Hi impedance monitor will not disturb data,
conversation, or signaling.
• LED indicates reversed polarity.
• Last number redial(31 digits maximum).
• Protection against excessive voltage,transients
ringer signals, and direct connection to most
batteries and power supplies.