Yes, just an hour ago I unplugged a VOIP phone, and 45 minutes later I received an email telling me that it had gotten unplugged. It means that my spiffy new SIP trunk monitor is working.
It will be recalled (see blog article dated June 25, 2023) that I fished for people to join me in an open-source project. The idea was to set up some PHP script that would run periodically, interrogating an API at the VOIP.MS company, querying the registration status of a long list of SIP trunks (what the company calls “subaccounts”). Now I have this working, in a sort of simple way.
This kind of monitoring actually monitors quite a few things. Suppose the VOIP device being monitored is a desktop phone. Then this monitor will tip me off if any of these things happen:
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- Somebody unplugging the phone itself.
- Failure in the power-over-ethernet delivery of power to the phone.
- Loss of Internet connectivity at the place where the phone is located.
You can read about it here.
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