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RichardCoulter · 18-01-2021, 18:54

When I had a BT line I once entered the wrong three digit number for a call and must have ended up dialling an engineer number. It kept repeating something like "Low insulation from A to D") I had a play around and found one that you could use to force an incoming test call, which I noted as this may have been useful.

There must be allsorts of numbers out there that both BT & VM use.

18-01-2021, 18:54	#7
RichardCoulter cf.mega poster Join Date: Jan 2008 Posts: 10,047	Re: Call charges but no phone When I had a BT line I once entered the wrong three digit number for a call and must have ended up dialling an engineer number. It kept repeating something like "Low insulation from A to D") I had a play around and found one that you could use to force an incoming test call, which I noted as this may have been useful. There must be allsorts of numbers out there that both BT & VM use.