MLTS (Multi-Line Telephone System): Difference between revisions

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A system comprised of common control unit(s), telephone sets, control hardware and software and adjunct systems used to support the capabilities outlined herein. This includes network and premises based systems. E.g., Centrex, VoIP, as well as PBX, Hybrid, and Key Telephone Systems (as classified by the FCC under Part 68 Requirements) and includes systems owned or leased by governmental agencies and non-profit entities, as well as for profit businesses.
'''''MLTS (Multi-Line Telephone System)''''' is communications equipment comprised of common control unit(s), telephone sets, control hardware and software and adjunct systems used typically in enterprise settings such as hotels, government agencies, commercial offices, and campuses. Such equipment includes network and premises-based systems such as Centrex, VoIP, as well as PBX, Hybrid, and Key Telephone Systems (as classified by the FCC under Part 68 Requirements).


{{Related Terms:}}
MLTS Manager
The entity authorized to implement an MLTS, either through purchase or lease of an MLTS or the purchasing of MLTS services, as the means by which to make 9-1-1 calls.


'''''Shared Residential MLTS (Multi-Line Telephone System) Service'''''
MLTS Operator

The entity responsible for ensuring that a 9-1-1 call placed from an MLTS is transmitted and received in accordance with this legislation regardless of the MLTS technology used to generate the call. The MLTS Operator may be the MLTS Manager or a third-party acting on behalf of the MLTS Manager.
The use of a specialized telephone system to provide service to residential facilities even if the service is not delineated for purposes of billing. Residential facilities shall be liberally construed to mean single family and multi-family facilities including Extended Care Facilities and Dormitories.

{{RelevantNENADocs}}
*'''NENA 03-502''', Trunking for Private Switch 9-1-1 Service Technical Information Document (TID)
*'''NENA 06-003''', NENA Private Switch (PS) E-9-1-1 Database Standard
*'''NENA 06-502''', Industry Common Mechanisms for MLTS E9-1-1 Caller Location Discovery and Reporting Technical Information Documents (TID)
{{External References}}

[https://www.fcc.gov/mlts-911-requirements FCC website: Multi-line Telephone Systems - Kari's Law and Ray Baum's Act]
[[Category:Glossary]]
[[Category:Glossary]]

Latest revision as of 14:36, 17 May 2024

MLTS (Multi-Line Telephone System) is communications equipment comprised of common control unit(s), telephone sets, control hardware and software and adjunct systems used typically in enterprise settings such as hotels, government agencies, commercial offices, and campuses. Such equipment includes network and premises-based systems such as Centrex, VoIP, as well as PBX, Hybrid, and Key Telephone Systems (as classified by the FCC under Part 68 Requirements).

Related Terms:

Shared Residential MLTS (Multi-Line Telephone System) Service

The use of a specialized telephone system to provide service to residential facilities even if the service is not delineated for purposes of billing. Residential facilities shall be liberally construed to mean single family and multi-family facilities including Extended Care Facilities and Dormitories.

Relevant NENA Documents
Note: To find and download the document, copy the document number (like NENA-STA-010) from below and search the NENA Standards and Documents page.


  • NENA 03-502, Trunking for Private Switch 9-1-1 Service Technical Information Document (TID)
  • NENA 06-003, NENA Private Switch (PS) E-9-1-1 Database Standard
  • NENA 06-502, Industry Common Mechanisms for MLTS E9-1-1 Caller Location Discovery and Reporting Technical Information Documents (TID)

External References


FCC website: Multi-line Telephone Systems - Kari's Law and Ray Baum's Act