Yes. The PSTN line cable serves as backup for the alarm notification functionality. In case of an alarm the system will send a push message directly. The stored alarm phone numbers will be dialed directly. If the PSTN line cable is not connected the system will not call but it will still sent the push message directly.
Articles in this section
- Why don’t I receive a push notification, even when the 3G network is enabled?
- The phone number is stored but when the alarm is triggered, I do not receive a call?
- Will I still be receiving push messages when I am abroad?
- I have no (PSTN) phone line cable, am I still able to use the W100 alarm system?