Standards
[CURRENT]
NF Z82-261
; NF EN 300261:2004-05-01
NF Z82-261
; NF EN 300261:2004-05-01
Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Call transfer supplementary service (V1.3.1)
Title (German)
Private diensteintegrierende Netze (PISN) - Zeichengabe zwischen Telekommunikationsanlangen - Dienstmerkmal Umlegung (V1.3.1)