Norm
[AKTUELL]
EIA/TIA-1112
EIA/TIA-1112
X.S0050-0 v1.0 Session Initiation Protocol (SIP) to ISDN User Part (ISUP) Interworking
Titel (englisch)
X.S0050-0 v1.0 Session Initiation Protocol (SIP) to ISDN User Part (ISUP) Interworking