VisorCentral.com (http://discussion.visorcentral.com/vcforum/index.php)
- Accessories (http://discussion.visorcentral.com/vcforum/forumdisplay.php?forumid=3)
-- Konexx acoustic coupler (http://discussion.visorcentral.com/vcforum/showthread.php?threadid=18145)

Konexx coupler

Konexx acoustic coupler http://www.konexx.com/products/koupler/index.html works with a VDx and ThinModem when the coupler is set to high frequency. This helps if pay phone is your only available line. You have to disable the wait for dial tone on the Visor first. The setup string ends with "X3" rather than the standard "X4".