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Originally Posted by RamJet
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3. If others can 'see ' my number showing up surely there must be some CLI equipment at thge MUX cab exchange - surely if it there it can be used the other way round so I can see C|LI numbers showing up ???
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There is no link, your phone calls are digital from the CAB onwards, the 'exchange' higher up in the chain passes on the original caller id.
The local box has to understand how to send the CLI information (it is a version of simple modem signals) when ringing your phone.
Some-one in ntl marketting clearly doesn't understand the importance of this so it is just not a priority. Perhaps they are right - the take-up of Caller display doesn't justify the investment? I really don't think they know how much it would cost because they haven't surveyed all the kit that is in use.