Side by side

Single-wire half-duplex bus with parasite power for sensors and ID chips. Presence pulse, ROM commands, and strict slot timing are the usual failure points.

North American Advanced Intelligent Network defines detection points, triggers, and SCP transactions (often over TCAP) for number translation, LNP, toll-free, and screening services. It is the ANSI counterpart mindset to ITU INAP/CAP, with Info_Analyzed and related messages driving SSP–SCP call control.