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Red alert for ADSL users By Niamah Davids and Asa SokopoUsers of ADSL systems and other special Telkom services have been warned that their phone lines can prevent alarm panic buttons from working – unless a filter system is installed.Telkom spokesperson Nabintu Petsana confirmed that the ADSL signal would interfere, unless an in-line filter was installed.Leading security firms also reported that ADSL and other services could interfere with the emergency calls.
ADT’s regional general manager Rob Dale said: “We advise all clients to regularly test their alarm systems and advise service providers of any changes to their telephone systems.”
In a newsletter to their clients, ADT identified the Telkom CallCatcher, BlockCall and Prepaid phones as among the services that caused alarm signal failure.
With the CallCatcher, ADT explained that when a message was left, the dial tone was interrupted until the message was picked up.
With the BlockCall, some incoming or outgoing calls were blocked.
With prepaid phones, the phone had to be at a certain credit level and the pin code should not be activated, unless the alarm dialler had the pin encoded by a technician.
The issue was highlighted when a Diep River woman’s home was almost burgled about three weeks ago.
When she pushed her panic button, the alarm’s siren blared, scaring away the burglars, but she got no response from her alarm company.
Published on the Web by IOL on 2008-08-29 11:25:00
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