https://community.bt.com/t5/Home-phone-including-Digital/Extension-query/m-p/2299022#M89717 <P>Very little if you do it yourself, somewhat more if you get a local tradesman to do it.</P> Mon, 19 Jun 2023 15:29:18 GMT licquorice 2023-06-19T15:29:18Z https://community.bt.com/t5/Home-phone-including-Digital/Extension-query/m-p/2299016#M89716 <P>How much would it normally cost to have a landline extension? I have a printer with a fax machine upstairs but it needs to be connected to the landline to work.&nbsp;</P> Mon, 19 Jun 2023 15:13:49 GMT https://community.bt.com/t5/Home-phone-including-Digital/Extension-query/m-p/2299016#M89716 angeljs 2023-06-19T15:13:49Z https://community.bt.com/t5/Home-phone-including-Digital/Extension-query/m-p/2299022#M89717 <P>Very little if you do it yourself, somewhat more if you get a local tradesman to do it.</P> Mon, 19 Jun 2023 15:29:18 GMT https://community.bt.com/t5/Home-phone-including-Digital/Extension-query/m-p/2299022#M89717 licquorice 2023-06-19T15:29:18Z