Base Rate Programmable from keypad
New 3.07 Processor
Upper Housing Lock Guard
Programmable for Prepay, Semi-Post Pay or Emergency Prepay from keypad
Keypad Adjustable Handset Receiver Volume Control (optional dedicated volume button available)
Local call timer available settings from 1-99 minutes for overtime rates.
10 Speed Call options to 16 digits
911 Free Call options
Transmitter Ground Detect Circuit
Rebuilt Model 120B complete with upper and lower locks.