Record or Amplify Phone Calls, RJ11C Phone Connection
Our Price $589.00

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The JK Audio Inline Patch Telephone Audio Recorder Interface is an interface patch between telephone lines and audio devices such as speakers, amplifiers and recorders. The Idaea behind the Inline Patch is to provide a simple solution for anyone who requires a phone tap for the purpose of recording or amplifying telephone conversations. The Inline Patch connects between the telephone wall jack and the base of any analogue or cordless telephone requiring standard RJ11C telephone cable.

Key Features

Inline Operation

The Inline Patch is a simple, effective solution for recording or capturing audio over phone lines. The Inline Patch connects between a wall jack and analogue or cordless telephone base.

Flexible Routing

XLR and 3.5mm mini line level inputs provide line level signal feeds over phone lines. A line level XLR output provides an isolated output for incoming signal while a pair of 3.5mm outputs provide a stereo and mono mix of both line and send / receive signals.

Suitable for Demo or Teleconference Presentation

The Inline Patch is suitable for connecting to powered speakers and using a cordless phone as a wireless intercom device for presentation and teleconferencing application.

Comprehensive Controls

The front panel features level control of send and receive telephone signal as well as line level signal. A Separation dial adjust the amount of isolation between send and receive signals.

Hybrid Technology

Hybrid circuitry provides a nominal 20dB of signal isolation between the transmit and receive signals. This minimises the noise and cross-talk associated with audio over phone lines.


InputBalanced: Female XLR
Line In: 1/8" (3.5mm) mono
OutputBalanced: Male XLR
Stereo: 1/8" (3.5mm)
Mono: 1/8" (3.5mm)
HandsetUnit connects in-line between wall jack and telephone base
IsolationIsolation 1500 volts
Phone LineRJ11C
Balanced: 1k ohms
Line In: 20k ohms
Balanced Out: 50 ohms
Stereo: 50 ohms
Mono: 50 ohms
Power Requirements16 VAC, 160 mA (120 VAC, UL approved transformer supplied)
Dimensions6 x 4.75 x 1.65" (15.3 x 12.1 x 4.2 cm)
JK Audio Inline Patch Telephone Audio Recorder Interface
JK Audio
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