General functions of messages and signals of the B-ISDN User Part (B-ISUP) of Signalling System No. 7 Amendment 1: Support for the International Emergency Preference Scheme SERIES Q: SWITCHING AND SIGNALLING Broadband ISDN - B-ISDN application protocols f
This amendment was produced to meet the urgent need for the implementation of the International Emergency Preference Scheme (IEPS) as specified in ITU-T Rec. E.106.