Introduction of Joiwo new auto dial jail & inmate & prison telephone with volume control JWAT139

Joiwo has developed new auto dial jail & inmate & prison telephone with volume control JWAT139.

This  stainless steel vandal proof  telephone  is usually used in jail,hospitals, oil rigs, platforms, dormitories, airports, control rooms, sally ports, schools, plant, gate and entryways, PREA phone,or waiting rooms .The telephone can be analogue or VOIP, and have two button. One is  auto dial button, the other is volume control button. The JWAT139 inmate telephone is  made of stainless steel ,with IP54 defend grade ,very sturdy and hard to damage. You can place the this telephone on the wall and fixed with screw to prevent slipping. Below is the main features of JWAT139  for your reference.