| This telephone system will virtually eliminate
all maintenance problems and expense in your visiting area. |
| Caps are sealed to prevent vandalism and contraband
passage |
Each conversation pair is completely
independent |
| Armored cables secure handsets to wall |
Short-circuit proof and open-circuit proof |
| Quality and volume are superior to standard desk
telephone |
Automatic changeover to auxiliary power in event
of power supply failure |
| Simple step-by-step installation by your service
personnel |
Safe, harmless low voltage used throughout |
| Handsets are moisture and smoke resistant |
Plug-in components allow easy replacement |
| All handsets are fully heating-aid compatible |
Handset receiver and transmitter are tamper-proof |