
Private Integrated Services Network (PISN); Specification, functional model and information flows; Call offer supplementary service [ISO/IEC 14841 (1996) modified]
出版:European Telecommunications Standards Institute

專家解讀視頻
Describes stage 1 and 2 of the call offer supplementary service. See ECMA DTR/ECMA-TR/SVC) for a description of the call offer supplementary service. See ENV 41 005 for definition of stage 1 and 2.
DIN ETS 300361 (1995-04) - Identical
NBN ETS 300 361:1995 - Identical
PN ETS 300 361:2005 - Identical
SS ETS 300 361:1994 - Identical