ComPack Universal Telephone Audio Interface

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ComPack Universal Telephone Audio Interface


Pick up this new handheld road tool to get audio in and out of analog phone lines, PBX systems, even cell phones. Perfect for Remote Broadcasts, IFB feeds, or interviews over any phone connection.


Wireless Phones and Notebooks

Simply plug ComPack into the 3.5 mm headset jack of your wireless phone or notebook computer. Your cell phone will recognize ComPack as a headset which will disable the internal mic and speaker.

Analog Phones

Plug ComPack into an RJ-11 jack, go off-hook and dial, or answer an incoming call.

PBX Systems

Unplug the handset from any analog or digital PBX phone and plug the coily cord into ComPack. You can now send and receive audio through the PBX telephone set.

Add a Phone Line to the Party Line

ComPack also functions as a simple telecom interface for your beltpack intercom system. This no-frills feature allows you to connect the 3 pin male XLR to your wet party line. This provides a full duplex, always-on connection to any telephone network.




  • HD Voice Compatible (Wide-Band Speech)
  • Works with Analog and Digital PBX or VoIP Phones
  • 4-conductor 3.5mm Headset Interface
  • Headphone, Mic, and Line Input Level Controls
  • XLR Mic Input (Mic/Line Switch)
  • XLR Line Output / Com Link
  • 3.5mm Stereo Line Input
  • 1/4" Stereo Headphone Jack
  • Transmit Clip LED
  • Battery Test LED
  • DTMF Keypad and Lockout Switch
  • Handset Selector Switch (Electret, Carbon, Dynamic)
  • >20 Hours on one 9V Alkaline Battery
  • Made in America
  • Approved for Sale in Europe and Australia



Mic InFemale XLR
Impedance1k ohms
Level15 mV RMS (-34 dBu nom)
Mic/Line Pad Switch+6 dBu max
Line Input1/8" (3.5mm) Stereo
Impedance20k ohms
Level250 mV RMS (-10 dBu nom)
Mix OutMale XLR
Impedance600 ohms
Level45 mV RMS (-25 dBu nom)
Com LinkMale XLR
Bi-Directional Unbalanced
Headphone1/4" Stereo
Impedance8 ohms
Level1/2 watt
Phone Line ConnectorRJ11C
Handset ConnectorRJ22
Ringer0.9B REN
Isolation1500 VAC
Power9 volt battery
AC power supply 120-240 VAC (included)
Size8" x 3" x 2.2" (20.3 x 7.6 x 5.6 cm)