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when installing an alarm in someones home or business it is imperative and necessary to achieve "full phone line seizure". usually you would use an RJ 31x or Rj 45 block to achieve full line seizure in the home. BUT sometimes this isn't always possible and it takes sometimes hours to achieve proper seizure of the home phone line. What this does is loops the phone line of the home to the security system first and then back to the homes phone lines. This way when an alarm is triggered it seizes the line not allowing the other phones to be used, so that the alarm has priority and can't be interrupted.
i would like to create a single device that when attached to the phone line and the alarm system it achieves the same effect with minimal wiring and little room for error to install, also with no side effects. all wireless alarms use 9v power supply,so even if the small device needs power to achieve this it could be done.
please refer to wireless alarms such as:
GE Simon 3
GE simon XT
GE simon XTi
Honeywell Lynx models
device needs to be small and very cost effective and easy to mass produce, would probably need to be $1 or less to mass produce to make ti worth it.