What is ISO 21792 - Guidelines for onboard telephone equipment about?
ISO 21792 provides general and specific recommendations related to the quality of communication, connectivity, installation, performance and maintenance of onboard telephone equipment, including automatic telephones, common battery telephones, battery-less telephones and sound-powered telephones. It also specifies requirements for the related performance tests (shop tests and onsite tests) and for the maintenance tests.
Note: ISO 21792 is not applicable to digital telephones, LAN (VoIP) telephones, and wireless telephones.
Who is ISO 21792 - Guidelines for onboard telephone equipment for?
ISO 21792 on onboard telephone equipment is useful for:
- Telephone equipment manufacturers
- Telephone equipment engineering companies
- Shipbuilders
- Shipowners
Why should you use ISO 21792 -Guidelines for onboard telephone equipment?
Onboard telephone equipment generally includes automatic telephones, common battery telephones, battery-less telephones, and sound-powered telephones. Until now, there have been no comprehensive standards for onboard telephone equipment provided by different manufacturers, and this has impeded the equipment improvements of reliability.
The automatic telephone equipment enables calling between onboard and outboard telephone equipment by connecting to outboard communication systems (such as INMARSAT, VSAT, cellular phones, and landline telephones). It also enables paging broadcasts from the telephone equipment by coupling with a public addresser. The automatic telephone exchanger should be able to withstand typical vibration and swinging motions (pitch and roll) for use in a shipboard environment. ISO 21792 provides requirements that will ensure accurate transmission and reproduction of the caller’s voice signals.
