Network access
BSR interflow operates over public, private, or virtual private ISDN-BRI and ISDN-PRI networks that meet the criteria explained in network requirements. BSR interflow can also operate over SIP trunks. BSR requires the network support transport of user-to-user data using MSI or UUI as a codeset 0 Information Element (IE), or as shared UUI over SIP trunks. The numbers administered on the BSR Application Plan screen are expected to access VDNs using ISDN, H.323, or SIP trunks, or using the Network Call Redirection (NCR) feature.
Administration or call processing does not prevent access to other types of trunks or to destinations that are not VDNs.