The  module  has  built-in  GPS  system  to  define  a  geographic  location  of  the  object  and  to  transfer  the  said information to a user's mobile phone. The  module  transfers  messages  about  event  of  the  security  system  to  the  mobile  phone  of  a  user  via  GSM Communication channel. Upon  alarm  response  of  the  security  system,  the  module  will  generate  SMS  message  about  alarmed  sensors: door, capote, shock, fuel  tank etc. SMS message is being sent to a user in -line with a short call. This is to reduce the probability that a user will not observe SMS message.

It is possible to send SMS and to call to 16 users. The algorithm of message sending is SMS1,SMS2...SMSn  till all  SMS  messages  will  be  send.  After  DIAL1,DIAL2....DIALn.  All  messages  are  being  sent  until  all  users  will  be notified  about  the  event.  Preferred  messages  and  texts  of  these  messages  should  be  defined  when  programming  the module.

The module understands when the call is rejected and will not repeat calling. When the module is calling to the user’s phone, the user can not reject the call at least 15 seconds. Otherwise the module will understand that the user’s number is busy and will try to repeat the  call again. In a case the user’s number is busy in fact, the module will make repetitive calls following the programmed number of calls.   Efficiency of this function depends on interpretation of call control  by  the  operator;  in  some  cases  the  operator   may  wrongly  interpret  the  call  and  thus  the  module  will  make repetitive calls each 60 seconds, following the programmed number of repetitions (by default 3 repetitions). In such case GSM operator may be changed or simply the amount of DIAL repetitions reduced.

Parameters of the module are set by sending SMS or via PC by using standard miniUSB cable and configuration software SERA. In  order  to  activate  voice  listening  it  is  necessary  to  call  from  a  user’s  telephone  number.  When  calling,  the module  will immediately activate  voice listening, which will last as long as the user  will reject the call or when the module  will  start  performing  other  commands.  Calls  from  other  telephone  numbers  (of  non-authorized  users)  are ignored.