Oct 11, 2006 #1 C ClouDxv1 Newbie level 6 Joined May 23, 2006 Messages 11 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,357 What kind of hardware that some house alarm system uses to auto call out if the alarm activated?
Oct 12, 2006 #2 dipal_z Full Member level 5 Joined Apr 21, 2005 Messages 278 Helped 37 Reputation 74 Reaction score 7 Trophy points 1,298 Location India Activity points 3,008 ClouDxv1 said: What kind of hardware that some house alarm system uses to auto call out if the alarm activated? Click to expand... If you are asking about telephone call it, can be achieved using DTMF dialer
ClouDxv1 said: What kind of hardware that some house alarm system uses to auto call out if the alarm activated? Click to expand... If you are asking about telephone call it, can be achieved using DTMF dialer
Oct 26, 2006 #3 C carlosftm Junior Member level 1 Joined Oct 16, 2006 Messages 18 Helped 1 Reputation 2 Reaction score 0 Trophy points 1,281 Activity points 1,385 Other way to make calls could be the use of AT commands trhu the serial port of some cellphones.