scope:

Introduction

The purpose of this Recommendation is to provide the stage 1 description of the method defined in Recommendation I.130 using the means given in Recommendation I.210.

Supplementary services are described by a prose definition and description (step 1.1) and by a dynamic description (step 1.3). The application of the attribute technique (step 1.2), as defined in Recommendation I.140, for supplementary services is for further study.

This Recommendation describes the following Call Offering supplementary services:

I.252.1 Call Transfer (CT)

I.252.2 Call Forwarding Busy (CFB)

I.252.3 Call Forwarding No Reply (CFNR)

I.252.4 Call Forwarding Unconditional (CFU)

I.252.5 Call Deflection (CD) (Note)

I.252.6 Line Hunting (LH)

Note - This service having been identified now requires further study; its description is not yet included.