Good condition.  Rackmount unit provides up to 10kHz audio bandwidth on a standard POTS line.  Includes power supply and manual.

$775 - 2 available

Excellent condition!  Allows for up to 15kHz bidirectional using 112/128kpbs ISDN circuits.  Comes with power supply and DB25 cable.

$400/set

DXP.1 unit only - $325

Improves audio quality on your POTS line.  Good condition.  One tabletop unit, one rackmount.

$250/set

Good condition.  Just back from Telos!  Screen upgraded in 2009.

$1395

Patriot provides mono 15khz bidirectional audio over POTS lines.  Includes cellphone audio adapter.

Commander rackmount includes dual audio inputs with corresponding headphone outs, dual control ports and front panel headphone jack.  Optional ISDN and relay interfaces are available from Tieline.

Both units are in excellent condition.

$1995/set

Single Patriot available for $995.

Single Commander Rack available for $1095.

Excellent condition.  1RU unit has dual V.35 card.  External ISDN CSU and manual included.

$725

Portable unit provides up to 10kHz audio bandwidth on a standard POTS line.  Good working condition.  Includes power supply.

$775

Excellent condition. 

$1295

Great condition.  Includes manual and power supply.

$1395

Allows Matrix portable unit to be used with a standard cell-phone with headset jack.  Also has landline jack.  Good condition.

$75

8 kHz audio using 3 POTS phone lines.  Portable transmitters; rackmount receiver.

$200/set

        SOLD!

Passes 7.5 kHz bi-directional audio via V.35 interface.

$650 - 2 available