Midian’s STI series adds telephone interconnect capability to radio systems. The STI offers up to 100 users. COR operation for PTT click counter with single memory dial is available for non-keypad users. Others features of the STI include call limit timers, toll restricts, automatic disconnect on busy signal, and more.

The STI-2 is similar to Zetron’s M45B Z-Patch.

• * and ANI for multi-user validation
• Capable of simplex, half-duplex, or full-duplex operation
• FCC Part 68 & Part 15 approved
• Offers up to 100 speed dials
• Simple * up and # down operation in single user mode
• Programmable via a Midian Programming Adapter