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Supermarket VOIP
chuckT writes "Tesco, the UK's largest supermarket chain, has announced plans to sell a VOIP handset and connection through their stores. Given that one out of every eight pounds, spent on shopping in the UK goes to Tesco, and the UK has one of the highest broadband takeup rates around, is this the end for the classic telecoms providers like BT?"
VOIP has many problems, e.g. unlike regular telephones on regular telephone lines, they do not work during power cuts. They can also cause problems when being used for emergency calls, as the location of the person cannot be traced easily (if at all.) Until the problems are sorted out, I don't think people will be jumping onto VOIP phones.
Unless there is a wireless grid the users of voip will still be dependent on the cables coming into their house. Those cables for the most part are owned by the telco/cable companies. It's not really an end to the Telco's it is more of a transition of services offered.
None of the problems seen as particular to VOIP (in the sense of Vonage at home etc) actually are and, besides, in the corporate environment, it has been a done deal for years. I haven't seen a large office that wasn't using IP phones in some years.
POTS doesn't run on magic fairy dust, it requires electricity, but it is assumed to be well backed-up, although it still suffers problems of cut lines etc. In "real" emergencies like earthquakes and storms, POTS goes out ALL THE TIME. How about the growing tide of wireless-only people? 911 problems are the same, towers go out, etc. With VOIP, you're running over POTS or cable. If YOU have a backup power system, much as is required on the provider end, there's little if any systemic difference in reliability--and really, most people no longer use telephones that run only on the power of the phone line itself, so while your telephone line may be just dandy, it doesn't do much good when the phone itself is dead.