Not sure when it started - at least a couple of weeks ago. The land line phone lights up, but does not ring. Nothing has been altered to cause this. More info - I've checked the settings. It's not muted. I've tried a different phone. Same thing happens. We can call out on the phone, BUT sometimes the mobile we call will show a different number calling! The phone is only needed for our Bosch alarm system to call us. I've tested that and it still works. We have an answering system on the phone. That used to cut in after 2-3 rings, but doesn't now. A couple of weeks ago the phone started to just ring once, then stop. Now it doesn't ring at all. We haven't changed anything! How do I investigate and/or fix this? Thanks.
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