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I would hazard a guess that he is saying that most people will be using voice over internet protocol (Phone calls via the internet basically) before NTL get round to upgrading the necessary hardware to allow caller ID to be available in all areas.
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I am sure this is about right †“ from 2 sources.
Last year I wrote to Simon Duffy (no less!) to complain about the lack of Caller Display. I got a call back from someone in NTL. The caller made it clear that a decision had been taken to cancel any further roll out on the current network †“ for cost reasons. It would have to wait for new technology †“ but he knew of no dates †“ would be years!
Couple this with the presentation made by Steve Upton (NTL Technical Director) at the 2004 Investors Day (Found on NTLââ‚Âà ‚¬ÃƒÂ¢Ã¢â‚¬Å¾Ã‚¢s Investors pages at
http://www.ntl.com/locales/gb/en/inv...w-final-vr.pdf )
Look at page 31 and you will see the then planned timescale for the roll out of VoIP was: start - 2006, complete †“ 2009.
He makes it clear he is referring to VoIP
within the network, transparent to the end user (in other words using existing phones) and replacing the 'ageing legacy "TDM" network'.
No doubt these dates have slipped †“ all dates slip with NTL.
His presentation also says the current TDM technology is becoming obsolete and the way ahead is to converge the data and voice networks. ie the voice network in the future will share the backbone Broadband network.