PSST Technology(HongKong) CO., LTD.
Robust auto dial telephone
Robust auto dial telephone

Robust auto dial telephone

Overview of robust auto dial telephone PT-M-KT6
Analog auto dial telephones offers increased resistance to vandalism and weatherproof, and ensure that the primary function of communications is maintained at all times, housed in cold rolled steel box and anti-vandal handset, resulting in a highly reliable product with a long MTBF.

The motherboard is stable, use the latest Austria voice chip, the main control chipset is the USA ATMEL company industrial grade microcontroller, to ensure stable work in the harsh environments. featured auto dial function, pick up auto dial the prestored numbers till it get through, self stop if the other side hang up.

Simple to maintain and install.
  • Overview
  • Specifications
  • Drawings

Main features of robust auto-dial telephone PT-M-KT6

  • Standard analog telephone, VoIP and GSM available
  • Cold rolled steel shell, high anti-vandalism and impact resistance
  • Waterproof protection: IP65-IP66
  • Line powered no need external power supply
  • Auto-dial function featured
  • Support prestore a group of numbers, auto dial when picking up
  • Wall hanging or mounted installation, easy to maintain and operate
  • Self-stop if the other side hang up
  • Microphone sensitivity can be adjusted
  • Volume can be adjusted
  • Direct connect emergency telephone

Applications of robust auto-dial telephone PT-M-KT6

Widely used in the railway, marine, tunnels, underground mining, firefighter, industrial, prisons, parking lots, hospitals, guard Stations,
police stations, bank halls, ATM machines, stadiums, inside and outside building etc

Package of robust auto-dial telephone PT-M-KT6

Size: 240*100*35mm
Packaging material: PE EPE bag, carton
Net weight: 1KG
Gross weight: 2KG


  • OEM/ODM services are available
  • Normal use, nonhuman damage, one year warranty

Specification of robust auto dial telephone PT-M-KT6

DTMF dialing parameters
  • Low frequency group frequency:697.770.852.941HZ
  • High frequency group frequency: 1209.1336.1477HZ
  • Frequency deviation: ≤ 1.5%
  • Low frequency group level: -9 + 3dB
  • High frequency group level: -7 + 3dB
  • Level difference : 2 + 1dB
  • Harmonic total distortion at least low 20dB than the fundamental level
Ringing tone decibel
  • 70dB
Speaker decibel
  • 90dB (external power supply)
Phone impedance
  • 600 Ω
  • EEPROM (power off without loss data)
  • RJ11 or 2P terminal
Parameter setting 
  • by keyboard DTMF dial set
  • excess of 50,000 hours using
Non - linear distortion
  • <5%
  • 48v
Working environment
  • Operating  Temperature: 30°C to +65°C 

  • Storing Temperature: 40°C to +75°C 

Accessories material 
  • Handset: ABS
  • Hook: Aluminum alloy
  • Telephone line: Armoured cable 
  • Housing: Cold rolled steel
  • Color: yellow red grey can be tailored
  • Logo, slogan can be tailored 
  • With keypad or without keypad 
  • VoIP GSM Analog protocols can be tailored

drawing of Robust auto dial telephone
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