Interworking between ISDN access and non-ISDN access over ISDN user part of Signalling System No. 7: Support of VPN applications with PSS1 information flows
This Recommendation describes interworking between Signalling System No. 7 (ISDN) and extended DSS1 for the support of VPN applications with PSSl information flows. For the intenvorking in this Recommendation related to ISUP, these replace that specified in Recommendation Q.699 whereas all other interworking of PSS1 information flows is according to that specified in Recommendation Q.699. The intenvorking described here provides a sub-set of all possible intenvorking scenarios and is therefore intended to describe the relevant mapping of information flows between the two interfaces being described.