1 General
2
Rules for alternative routing
3
Rules for conversion of TCICs and NICs
4
A third COT on type D to allow conversion of NIC to TCIC, and overcome
possible call connected signal and answerback timing problems
5
Rules for service signal conversion
6
Rules for exchange of line identifications
7
Rules for call connected signal conversion
8
Rules for obtaining the called subscriber’s answerback when interworking
type D with other signalling systems