This International Standard determines the service access points (SAPs) of a communication interface (CI) as
provided by the communication adaptation layer (CAL) for communication, and as provided by the CI
management adaptation entity (CIMAE) for management of the communication interface.
ISO 21218:2008 history
2018ISO 21218:2018 Intelligent transport systems - Hybrid communications - Access technology support
2014ISO 21218:2013/Amd 1:2014 Intelligent transport systems - Communications access for land mobiles (CALM) - Access technology support; Amendment 1
2013ISO 21218:2013 Intelligent transport systems - Communications access for land mobiles (CALM) - Access technology support
2008ISO 21218:2008 Intelligent transport systems - Communications access for land mobiles (CALM) - Medium service access points