Emergency Calling Overview
This topic describes concepts that you need to know before managing emergency calling, including requirements and restrictions, basic emergency calling, and enhanced emergency calling.
Requirements
To make an emergency call, you should make sure the following requirements are met:
- IP phones or soft phones must be registered to Yeastar P-Series PBX System.
- At least one trunk should be configured for an emergency number.
Basic emergency calling
The basic emergency service only connects a caller to the local Public Safety Answering Point (PSAP), but no location is provided. Emergency callers must be ready to provide their location information for the PSAP. PSAP then arranges appropriate emergency response after communicating with the callers.
For more information, see Set up Basic Emergency Calling.
Enhanced emergency calling
Enhanced emergency service is only available for specific countries and regions, such as E911 in North America, E112 in continental Europe, E999 in England, etc.
For an enhanced emergency call, PSAP can immediately pinpoint the caller's location based on the calling number.
For more information, see Set up Enhanced Emergency Calling.
Terminology
The following list defines the key terminology for enhanced emergency calling.
- PSAP
- A Public Safety Answering Point (PSAP) is responsible for receiving emergency calls and arranging appropriate emergency response, such as dispatching a police, fire, or ambulance team.
- ERL
- An Emergency Response Location (ERL) is a specific geographic location to which an emergency response team may be dispatched. To provide the PSAP with the emergency caller's precise location, you may need to set multiple ERLs.
- ELIN
- An Emergency Location Identification Number (ELIN) is the phone number (Caller ID), which is associated with an ERL. When an emergency call is made, the ELIN is displayed on the PSAP side so that they can match the caller ID with the ERL.