SIM Status

A SIM is either online or offline. Neither state is pushed to Connecfy by an event — both are inferred from whether the phone has checked in recently.

Online

Set the instant a heartbeat arrives, which happens roughly every 15 seconds while the app is running normally. "Online" means "heard from recently," not "definitely able to send right now" — a phone with no signal but a live network connection for its heartbeat still shows online.

Offline

Nothing flips a SIM to offline the moment it actually disconnects — a killed process or dead battery just stops sending heartbeats. Connecfy corrects this lazily: any time a device's status is about to be shown (a dashboard load, a stats query), it first checks whether the last heartbeat is older than 45 seconds and flips it to offline if so. In practice this means the dashboard is accurate within under a minute of a real disconnect, not instantly.

Last seen

The device page shows the timestamp of the last heartbeat received — useful for telling a SIM that's been offline for five minutes apart from one that's been offline for five days.

Usage per SIM

The Statistics page breaks down sent, failed, and success rate per SIM, so a single underperforming phone (bad signal, low battery cutting the app in the background) is visible rather than averaged away into the account total.