Firmware - Alphatech (en)

V 1.00 - 25.04.2005 - basic default verze
V 1.10 - 28.07.2005 - fixed redial for the failed call without confirmation
V 1.12 - 10.10.2005 - by default changing the value of time without ringing tone from 5sec to 7sec for detecting pickup
V 1.13 - 25.11.2005 - Fixed reliable recognition in the call mode WITHOUT CERTIFICATION (repeat at not confirm call)
V 1.14 - 5.12.2005 - edited more reliable detection call in the call mode WITHOUT CERTIFICATION (repeat at not confirm call)
V 1.15 - 16.2.2006 - adjusted for the possibility of tripping the alarm (on some exchanges can detect a false tone dialing)
V 1.16 - 27.4.2006 - modified erroneous initialization default values for the alarm off
V 1.20 - 1.10.2007 - added key parameter of polarity emergency call - default is a normal button (press of turns)
V 1.21 - 1.10.2007 - added key parameter of polarity emergency call - default button is normally closed (press of opens)
V 1.22 - 1.3.2008 - echo in the cab for remote programming - default is a normal button (press of turns)
V 1.23 - 1.3.2008 - echo in the cab for remote programming - default button is normally closed (press of opens)