ETSI ETS 300 917

This ETS defines the GSM Application Programming Interface (GSM-API) i n two parts. The first part describes, how compatibility to existing application in terface ETS 300 325 [14] is covered for the GSM network. So existing P CI applications are able to be used in a GSM environment. For these ap plications the necessary mapping and local knowledge between applicati on interface and network is described. The only modifications needed i n ETS 300 325 [14] to fulfil this requirements are covered by changes of the parameter description. These changes of parameters are defined in clauses 4 and 5 of this ETS . Clause 4 is meant to replace subclause 5.7 message parameters of ETS 3 00 325 [14]. which defines the parameters of the profile A of the PCI. NOTE 1: Clause 4is for further study. Clause 5replace subclause 6.8 parameter description of ETS 300 325, w hich defines the parameters of the profile B of the PCI (bit compatibl e to COMMON-ISDN-API, CAPI 2.0). The second part defines GSM specific features. New GSM-API application s need extensions to ETS 300 325 [14] which are defined in section 6 and 7of this ETS. These sections are meant as an addition to ETS 300 325 [14]. They do n ot replace any clause of ETS 300 325 [14]. Clause 6 defines the extensions according to the profile A of ETS 300 325 [14]. NOTE 2: Clause 6 is meant for further study. Clause 7 defines the extensions according to the profile B of ETS 300 325 [14] (bit compatible to COMMON ISDN API). The messages and the operating system dependent part of ETS 300 325 [1 4] will not be changed for GSM-API.