Existing hardware can be used for Look-Ahead Interflow (LAI) connectivity to the receiving Communication Manager. Interconnecting facilities must be ISDN-PRI or SIP with no interworking, that is, call connections that use both ISDN-PRI and non-ISDN-PRI facilities to complete, for the full capabilities of the feature to be operational. LAI calls that interwork can interflow successfully LAI calls can connect ISDN-PRI switch-to-switch using private, public, or ISDN facilities. |
