Specifies the supplementary services Call Forwarding Unconditional (CFU), Call Forwarding Busy (CFB), Call Forwarding No Reply (CFNR) and Call Deflection (CD), which are applicable to various basic services supported by Private Integrated Services Networks (PISN). Basic services are specified in ISO/IEC 11574.
Текущий статус : WithdrawnДата публикации : 1995-12
Версия : 1Число страниц : 80
Технический комитет:Telecommunications and information exchange between systems