That's fairly dodgy as if it is a mains control loop it will probably have a 3A fuse which is almost certainly plenty to set phone wire on fire. Quite tempted to try.
It was like that for 8 year before I changed it and for gawd knows how long before we moved in.
But without a fault somewhere else.
@Chaley started
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That's fairly dodgy as if it is a mains control loop it will probably have a 3A fuse which is almost certainly plenty to set phone wire on fire. Quite tempted to try.