BS 8521-2:2020

This standard BS 8521-2:2020 Social alarm systems. IP signalling protocols is classified in these ICS categories:

• 13.320 Alarm and warning systems

This British Standard specifies requirements for the transfer of information and control signals between social alarm equipment used in specialized group living environments and alarm receiving centres (ARCs).

It provides for the establishment of a common signalling protocol over a public or private IP network to ensure that social alarm systems from different manufacturers exchange essential information and controls in a compatible manner.

This British Standard specifies a protocol for point-to-point transmission of alarms, faults, control signals and communications monitoring using the Internet Protocol (IP) to enable communication of the following:

1. alarm information;

2. speech path and system control commands;

3. selection of local units in grouped equipment;

4. request for information on outstanding calls;

5. speech control functions;

6. equipment control functions;

7. programming;

   • parameter programming;

   • parameter remote enquiry; and

8. streaming media, e.g. voice.

NOTE 1 The alarm protocol is intended for use over any network that supports the transmission of IP data with sufficient quality of service to support VoIP.

NOTE 2 The alarm protocol is defined as an XML scheme including the alarm types, codes and necessary additional information.

The alarm protocol is an application layer protocol using another IP as a transport protocol to handle addressing and transport functions. The transport protocol initially defined in this standard is Session Initiation Protocol (SIP).