KPN starts ISDN phase-out, alarm system may fail
Because the technology has become severely outdated after almost 30 years, KPN is stopping supplying ISDN. This may have implications for still a large number of alarm systems, as ISDN was very popular in the security industry at the time. Users are advised to test their systems.
It had been announced quite some time ago, but then yesterday was 'Black Sunday'. The day when KPN would start decommissioning its ISDN network. The technology that was once introduced as an improvement to analogue telecommunications has since been superseded by All-over-IP. The security industry had been informed over a decade ago that this would happen and developed equipment, which could make existing alarm systems suitable for IP networks. However, many installers and users of alarm equipment decided to wait and see, as the conversion involved reasonably high costs.
Warned
Analogue telephony (PSTN) will remain in use for at least 3 years for now, but ISDN and multiple PSTN will be phased out from 1 September. Subscribers were warned about this back in 2017, but according to the private emergency call centres, there are still thousands of alarm system users who have not taken action and thus since Sunday cannot be sure that burglary and fire alarms will reach the emergency services. According to KPN, these are almost exclusively businesses. Private individuals are said to have virtually stopped using ISDN. KPN offers that ISDN users will be made reachable again very quickly if they contact, but via new technology.
Other telecom companies
Customers of other telecom companies using ISDN will also face the phasing out of the technology. It became popular in the 1990s with the rise of the internet. Thanks to ISDN, simultaneous calling and internet access became possible without having to take out two subscriptions. ISDN was also considered very suitable for alarms, especially when equipment came along that allowed communication via ISDN's always-available service channel. This gave the reliability of an expensive fixed line at considerably lower cost.
Until 1 April 2020, ISDN will remain available on a limited basis. Multi-channel variants (ISDN15/20/30) will remain active until 1 October 2021
Source: security news.co.uk dated 02-09 2019
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