{"id":238,"date":"2018-10-05T19:41:28","date_gmt":"2018-10-05T19:41:28","guid":{"rendered":"http:\/\/10.10.1.214\/?p=238"},"modified":"2026-11-04T19:41:42","modified_gmt":"2026-11-04T19:41:42","slug":"is-your-multi-line-telephone-system-mlts-in-accordance-with-karis-law","status":"publish","type":"post","link":"https:\/\/blog.patton.com\/index.php\/2018\/10\/05\/is-your-multi-line-telephone-system-mlts-in-accordance-with-karis-law\/","title":{"rendered":"Is your Multi-Line Telephone System (MLTS) in accordance with Kari\u2019s Law?"},"content":{"rendered":"
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Kari Hunt Dunn<\/figcaption><\/figure>\n<\/div>\n\n\n

Public Law No.115-127. Known as Kari’s Law<\/a>, the legislation is named for the woman <\/em>(Kari Hunt Dunn) who was stabbed to death while her daughter tried (and failed) to call 911 from a hotel room.<\/em><\/p>\n\n\n

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On February 16th<\/sup>, 2018, President Trump signed into law an amendment (H.R.582) to the \u2018Communications Act of 1934\u2019<\/em>, that requires multi-line telephone systems (MLTS) to have a configuration that permits users to directly initiate a call to 911 without dialing any additional digit, code, prefix, or suffix.<\/p>\n\n\n\n

A common feature of MLTS is the configuration requiring a user to dial a digit or prefix to reach a number outside of the system \u2014 dialing \u201c9\u201d before reaching an outside line, for example.<\/p>\n\n\n\n

When an emergency call is placed from a MLTS phone, the user may still have to dial the prefix to direct the call outside of the system.  Does this sound like your current phone system?<\/p>\n\n\n

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Dialing 911 should be easy, right?<\/figcaption><\/figure>\n<\/div>\n\n\n

Need a solution fast?  Look no further then the Patton SmartNode unified communications (UC) product line which includes VoIP gateways, routers, ATAs, IADs, and eSBCs.  Patton SmartNode devices provide the essential digit manipulation and E-911 services that can help your business meet the requirements of Kari\u2019s Law.<\/p>\n\n\n\n

Application<\/strong><\/p>\n\n\n\n

PROBLEM<\/strong>: Users must dial \u20189\u2019 for an outside line. That is, your MLTS requires you to dial ‘9’ in order to reach an outside line \u2014 before dialing 911. So, do you need to change your entire MLTS routing table to comply with KARI’s law?<\/strong><\/em><\/p>\n\n\n\n

SOLUTION: <\/strong>The answer is NO…  if<\/em> you have installed a Patton SmartNode VoIP gateway router. In this scenario, the users need ONLY<\/strong> dial 911. The SmartNode will automatically pre-pend a ‘9’ to the called e164 number<\/a> (using it’s complex internal Mapping-Table function). The legacy PBX receives four digits:  9911. No changes to the MLTS are required.<\/p>\n\n\n\n

Here’s how to configure it….<\/strong><\/p>\n\n\n\n

mapping-table called-e164 to called-e164 ADD_9
<\/strong>     map 911 to 9911
     map (.%) to 9\\1
routing-table called-e164 RT_ADD_9
<\/strong>    route default dest-interface IF_NAME ADD_9<\/strong><\/p>\n\n\n

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SmartNode E911 Solution<\/figcaption><\/figure>\n<\/div>\n\n\n

For more information, please see:<\/p>\n\n\n\n