WC99 Emergency Calls from Mobile Customer Equipment


The Emergency Calls from Mobile Customer Equipment Working Committee is to:
  • Document the combinations of Customer Equipment (CE) operating systems and mobile network generations (e.g. 3G, 4G, 5G) for a Mobile Carrier accepting a CE identifier (e.g. International Mobile Equipment Identity (IMEI), Permanent Equipment Identifier (PEI)) from the CE for forwarding to the Emergency Call Person (ECP); and
  • create a new Guideline / Specification for emergency calls from Customer Equipment (CE) using a public mobile telecommunications Service, including SIMless calls, that:
    -  Enables the transfer of data, received from the CE in accordance with AS/CA S042.1, in Session Initiation Protocol (SIP) fields across the point of interconnection including IMEI/PEI, International Mobile Subscriber Identity IMSI (or equivalent service identifier), Mobile Services Integrated Services Digital Number (MSISDN), location information and device type (i.e. user agent info);
    -  Classifies the SIP fields e.g. as mandatory, recommended, optional;
    -  Maintains alignment with any relevant international specifications; and
    -  Aligns with the format of the current Communications Alliance template.
The Working Committee is not to address a SIP interconnection interface for emergency calls from CE using a:
  •  Fixed local service; or
  • Satellite service 

Terms of reference (Download, .doc 175KB)