Phoenix Audio Technologies
- 17 -
www.phnxaudio.com
9. Digital Phone Interface - Connection and Operation
The Digital Phone Interface is designed to operate with digital phone systems
like Avaya or Cisco through the telephone’s Headset Jack. The interface panel
has one RJ11 jack and two sliders numbered 1 and 2.
The DTI unit comes equipped with two different RJ to RJ cords (one is black and one is gray). Some digital
phones will work with the black Cisco compatible cable while others will with the gray Avaya compatible cable.
Once you find the correctly fitting cable, simply connect one side of the supplied RJ cord to the headset port of
your digital phone and the other end to the RJ jack on the Quattro2.
The Digital Telephone interface has dual two-position DIP switches that controls the level (sensitivity) of the
unit’s audio output signal going into your phone. If the gain is set too high the phone input will clip the signal
and the Quattro2 will fail to cancel the Line Echo. As a result you may hear an
echo returning when you speak. If the gain is set too low, the other side may
have difficulty hearing you. When you receive a new unit, it is set to a low gain
which will work well with most phones. If you get complaints that your voice is
too low increase the gain as required without producing echo. Please use the
following table for reference.
10. Downwards Compatibility
The Quattro2 is a new product utilizing similar industrial design and functional concept as its predecessor the
Quattro.
You can Daisy Chain Quattro units with Quattro2 units, but some of the new features will not function properly.
More specifically you cannot turn the whole chain from Quattro #1 if it includes an older version Quattro in it.
Similarly, you cannot turn off, mute and un-mute that whole chain from each unit. You will not be able to
charge the second unit if one of the units is an older version Quattro.
