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Skywave · 10th Jul 2018, 1:47 pm

Thanks. "Powered by the phone line": I thought as much, but wasn't sure. This 'phone will connect to the 'phone socket of a broadband / ADSL filter, so although there is a BT431 plug on the 'phone lead, there will only be the twisted pair of wires to the 'phone. Presumably, I can power it from an external d.c. supply - but what voltage should I use? 50 v.d.c.?

Al.

10th Jul 2018, 1:47 pm	#4
Skywave Rest in Peace Join Date: Jun 2006 Location: Chard, South Somerset, UK. Posts: 7,457	Re: Info. on 'phone requested Thanks. "Powered by the phone line": I thought as much, but wasn't sure. This 'phone will connect to the 'phone socket of a broadband / ADSL filter, so although there is a BT431 plug on the 'phone lead, there will only be the twisted pair of wires to the 'phone. Presumably, I can power it from an external d.c. supply - but what voltage should I use? 50 v.d.c.? Al.