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911 revised

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barry7777

Technical User
Sep 10, 2009
48
US
What i meant was do you have to give both options to dial 911 and 9911 by law. Is there any law that governs this?
 
As far as I know the stipulation is that you cannot block any telephone from accessing 911.

In my experience, most installers will program 911 in 1 of 2 ways:

1. Implement 911 through the ESA feature, and include a RLI that strips the leading 9 if 9911 is dialed (built as SPN 911 in LD 90).

2. In LD 90 build 2 SPNs 11 and 911. for the 1st entry, the leading 9 is added back onto the number using a DMI in the RLI.

I prefer method 1, as this allows the most flexibility when implementing E911.
 
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