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<blockquote data-quote="Mr Sworld" data-source="post: 3229" data-attributes="member: 184"><p>Right, talked to my good BT buddies today.</p><p></p><p>The gist of it is to 'listen' to the pairs at the incoming boxes. If you have a butt test phone then attach the croc-clips to the individual pairs (if not get a old handset from a normal phone and put croc-clips on the wires from the ear-piece), if you have a dial tone, it's still live. However, if the service has been 'unbundled' at the exchange you will not hear a dial tone. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown :(" loading="lazy" data-shortname=":(" /> </p><p></p><p>If you don't hear a dial tone test the pairs with a multi-meter, a live line will have 50V dc on it, a ISDN line will have 90V dc however.</p><p></p><p>So if you don't get a dial tone or a voltage it's probably dead. Even the BT engineers cannot tell a software diss'ed line however from a terminal block.</p><p></p><p>However on a positive note, due to me asking the BT guys about this they gave me a 'butt test phone' they happened to have lying around, because of my interest in the subject! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big grin :D" loading="lazy" data-shortname=":D" /></p></blockquote><p></p>
[QUOTE="Mr Sworld, post: 3229, member: 184"] Right, talked to my good BT buddies today. The gist of it is to 'listen' to the pairs at the incoming boxes. If you have a butt test phone then attach the croc-clips to the individual pairs (if not get a old handset from a normal phone and put croc-clips on the wires from the ear-piece), if you have a dial tone, it's still live. However, if the service has been 'unbundled' at the exchange you will not hear a dial tone. :( If you don't hear a dial tone test the pairs with a multi-meter, a live line will have 50V dc on it, a ISDN line will have 90V dc however. So if you don't get a dial tone or a voltage it's probably dead. Even the BT engineers cannot tell a software diss'ed line however from a terminal block. However on a positive note, due to me asking the BT guys about this they gave me a 'butt test phone' they happened to have lying around, because of my interest in the subject! :D [/QUOTE]
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