Digital Subscriber Signalling System No. 2 - User-Network Interface (UNI) Layer 3 Specification for Basic Call/Connection Control Amendment 4 Study Group 11
This annex specifies the functions to be performed by an Intenvorking Function (IWF) installed between the B-ISDN and the N-ISDN. As regards the mapping function, only the intenvorking between the access protocols involved is covered. Intenvorking scenari