Tanit Alarm Actan 3 Pack

Hello,
Generally, alarms do not mix well with boxes (ADSL or fiber)
The best solution for an alarm is to be completely independent of the traditional telephone network or the Internet. A connection via GSM (wireless telephone networks) is the most reliable.
Ask Tanit, who are certainly the most qualified to answer your questions on this subject.
http://www.tanit.fr/contact.php

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                              Especially when it's not there...