- TS22A test set with ABN, part number 22801-009- Amplified speaker for hands-free monitoring- 2-way speakerphone- DropSafe reliability passes 20-foot drop test- RainSafe protection for severe weather conditions- Stores nine 18 digit numbers in repertory dialer- Tone (DTMF) and pulse operation- Locking mute switch- Over voltage and current protection- PBX pause button- Field replaceable belt clip- Continuous polarity LED indications- DataSafe high impedance monitor