The Loudspeaking Telephone (LST) is a
completely self-contained battery-powered
communication unit that provides loudspeaker paging and handset party line conversation over a twisted telephone line.

Features:

• Simple Installation & Operation

• High quality audio - voices 
  sound clear

• Ease of Service

• Portable

• Battery Operation

• Rugged Construction

• Environment Protected

• #16 Gauge Stainless Steel Case

• Note: There are no operation differences between Rig and Mine LST Models

Product Literature

AM70 Series pub. F930218

Installation Manuals

AM70 Series (NonPermissible)

Model AM7020
Loudspeaking Mine Telephone