Does the Guardian Alert 911 Plus need to connect to a landline? Garrison Grimes January 23, 2026 22:34 Updated No, this device uses 4G LTE to connect to cellular networks. Related articles Can I receive calls on the Guardian Alert 911 Plus How does Guardian Alert 911 Plus work? Will I need a cellphone plan to use Guardian Alert 911 Plus? What is the warranty coverage for Guardian Alert 911 Plus? Does the Guardian Alert 911 need to connect to a landline? Comments 0 comments Article is closed for comments.
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