JK Audio THAT-2

Connect THAT-2 between your telephone and handset for fast get entry to to audio out and in of the phone. The THAT-2 is utilized by radio stations to record and play sound bytes, and by TV and movie sound crews to get IFB dialog over telephone lines.
Works with analog, digital, PBX, and ISDN telephones RCA and XLR line out and in Switch selects between carbon, dynamic or electrethandset sorts No battery or AC adapter wanted Durable diecast aluminum construction
Line Inputs: RCA, 20 k ohms, 250 mV RMS (+12 dBmmaximum) XLR female, 20 k ohms, 250 mV RMS (+12 dBm maximum) Line Outputs: RCA, 600 ohms, 100 mV RMS (-16 dBm nominal.) XLR male, 600 ohms, 100 mV RMS (-16 dBm nominal.) Handset Interface biased for Electret, Dynamic, and Carbon handsets.