ยง  717-a.  Direct  dialing  to public service answering points. 1. For
  purposes of this section, "public  building"  shall  mean  any  building
  belonging  to  the  state, county, town, village, school district or any
  other political or civil subdivision of state or local government.
2. For purposes of this section, "multi-line telephone  system"  shall
  mean  any  system  comprised  of  common  control units, telephone sets,
  control hardware and software, and adjunct systems which  enables  users
  to  make  and  receive  telephone  calls  using shared resources such as
  telephone network trunks or data link bandwidth. This term includes, but
  is not limited to, network-based  and  premises-based  systems  such  as
  Centrex service, premises-based, hosted and cloud-based VoIP, as well as
  PBX,  Hybrid  and  Key Telephone Systems, as classified by the FCC under
  Part 68 of its rules.
3. All public buildings which operate on a multi-line telephone system
  in this state must configure their multi-line telephone system  hardware
  to  allow  any  call  to 911 on the system to be directly connected to a
  public service answering point; provided however, that in  the  case  of
  public  buildings  governed  by  section three hundred fifty-five or six
  thousand two hundred four of the  education  law  which  have  on-campus
  emergency  answering  points,  such  public buildings may route such 911
  calls to their on-campus answering points.
4. The requirements of subdivision three of  this  section  shall  not
  apply  to any public building operating on a multi-line telephone system
  that would be required  to  upgrade  the  hardware  of  their  telephone
  network to meet said requirement. However, every telephone in any exempt
  public  building  operating on a multi-line telephone system shall place
  an instructional sticker on or immediately adjacent  to  each  telephone
  informing  users  of  the phone's inability to directly dial 911 and the
  procedures to follow to connect to a 911 public service answering point,
  or in the case of public buildings governed  by  section  three  hundred
  fifty-five  or  six thousand two hundred four of the education law which
  have on-campus emergency  answering  points,  such  on-campus  answering
  points, in case of an emergency.
Structure New York Laws
Article 26 - Division of Homeland Security and Emergency Services
709 - Division of Homeland Security and Emergency Services; Creation; Powers and Duties.
709-A - Office of Counterterrorism.
711-A - Analyze and Report on the Feasibility of Implementing Tornado Warning Systems.
711-B - Review of Water Supplier Vulnerability Analysis Assessments.
713 - Protection of Critical Infrastructure Including Energy Generating and Transmission Facilities.
714 - Protection of Critical Infrastructure; Storage Facilities for Hazardous Substances.
717 - Office of Interoperable and Emergency Communications.
717-A - Direct Dialing to Public Service Answering Points.