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ISDN to be Withdrawn
The widespread availability and adoption of Broadband has effectively killed off the demand for ISDN (Integrated Digital Service Network) and BT now plan to withdraw these services later this year.
ISDN gained initial popularity among home workers who appreciated its relative speed and flexibility when compared to traditional dial-up solutions. In those days, fast data pipes such as broadband were prohibitively expensive so ISDN became the first choice for home net users.
However, according to figures from telecoms watchdog Ofcom, average speed of Broadband in the UK is 3.8Mbps – that’s a lot quicker than ISDN can cope with. With over 50% of adult net users in the UK on broadband, BT have decided to withdraw ISDN owing to plummeting demand.
That said, there is one group who will certainly mourn its demise: broadcasters commonly use ISDN to file reports remotely and with plans afoot to discontinue ISDN worldwide many are wondering how to replace it. The advantage to broadcasters is constant speed: the connection speed on ISDN remains the same whether upstream or downstream, whereas net-based alternatives allow download speeds far quicker than uploads. For outside broadcast work, this presents a serious problem.
To cope with fluctuating speeds of IP connections, some broadcasting equipment adds delay automatically, something which in itself can cause other problems – particularly in the case of live broadcasts. If output needs to be relayed to the presenter via headphones, any delay will become apparent to the viewers and can result in untidy delivery.
Further development of IP based connections is already underway, with some countries even encouraging manufacturers to build IP equipment specifically for the broadcasting industry. However, these solutions are not going to happen overnight. One industry expert, talking of ISDN, simply said "There's nothing that can replace it."
www.businessinberkshire.co.uk/onlinemedia
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