Although many Fongo users may never experience an issue using VoIP systems with door buzzer or home security systems, Fongo Home Phone does not officially support these systems, and do not guarantee compatibility with any of these systems. You can contact our support team to attempt troubleshooting these issues.
We recommend consulting with your property manager or home security provider to assist with issues pertaining to VoIP compatibility. You can also visit our forums to search conversations about this.